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Topic: Terminal velocity


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In the News (Tue 17 Nov 09)

  
  Terminal velocity - Wikipedia, the free encyclopedia
The terminal velocity of an object falling towards the ground, in non-vacuum, is the speed at which the gravitational force pushing it downwards is equal and opposite to the atmospheric drag (also called air resistance) pulling it upwards.
For example, the terminal velocity of a skydiver in a normal free-fall position with a closed parachute is about 195 km/h (120 mph).
The reason an object reaches a terminal velocity is that the drag force resisting motion is directly proportional to the square of its speed.
en.wikipedia.org /wiki/Terminal_velocity   (600 words)

  
 Fluid Friction
This final, constant velocity of motion is called a "terminal velocity", a terminology made popular by skydivers.
For objects moving through a fluid at low speeds so that turbulence is not a major factor, the terminal velocity is determined by viscous drag.
That is, the terminal velocity increases with the size of the hailstone.
hyperphysics.phy-astr.gsu.edu /hbase/airfri2.html   (289 words)

  
 Terminal Velocity - Search Results - MSN Encarta
Terminal Velocity, maximum velocity which a freely falling object reaches when it is falling through a viscous (semi-fluid) medium such as air.
Velocity, rate of linear motion of a body in a particular direction.
Velocity is a vector—that is, it has both magnitude and direction.
uk.encarta.msn.com /Terminal_Velocity.html   (153 words)

  
 Speed of a Skydiver (Terminal Velocity)
Another factor that affects terminal velocity is the orientation at which a body falls.
The terminal velocity for a skydiver was found to be in a range from 53 m/s to 76 m/s.
Terminal velocity is often reported to be approximately 60 m/s for a typical skydiver in free fall.
hypertextbook.com /facts/JianHuang.shtml   (2190 words)

  
 Terminal Velocity
The chemistry of the atmosphere and the gravitational constant of a planet affects the terminal velocity.
For airflow near and faster than the speed of sound, there is a large increase in the drag coefficient because of the formation of shock waves on the object.
The terminal velocity equation tells us that an object with a large cross-sectional area or a high drag coefficient falls slower than an object with a small area or low drag coefficient.
www.grc.nasa.gov /WWW/K-12/airplane/termv.html   (732 words)

  
 Terminal_Velocity   (Site not responding. Last check: 2007-10-03)
Terminal velocity, a rather chilling term, describes the velocity at which drag force from the air becomes equal to the force from the weight of an object, and thus the object no longer accelerates and consequently velocity remains constant.
The greater an object's cross-sectional area and the less its mass, the lower the terminal velocity and the sooner it's reached.
Not only do cats seem to "understand" how increasing their area can lead to a less painful landing, they also seem to be well acquainted with the conservation of angular momentum, which they artfully use to land on their feet time and time again.
ffden-2.phys.uaf.edu /211.web.stuff/Kuhns/terminal_velocity.htm   (318 words)

  
 Terminal Velocity (gravity and drag)
The velocity at any time during the flight depends on the corresponding acceleration of the vehicle and the balance of forces acting on the vehicle.
For a rocket landing on Mars, the atmospheric density is quite low, and the terminal velocity correspondingly higher.
The terminal velocity equation tells us that an object with a small cross-sectional area, or a low drag coefficient, or a heavy weight will fall faster than an object with a large area, or high drag coefficient, or a light weight.
exploration.grc.nasa.gov /education/rocket/termvr.html   (970 words)

  
 TerminalVelocity
The terminal velocity depends on several things such as the mass of the coffee filter its area and its shape.
Terminal velocity occurs when the net force on a falling object goes to zero.
so the terminal velocity is proportional to the square root of the mass.
www.exo.net /~pauld/activities/flying/TerminalVelocity.html   (526 words)

  
 Terminal Velocity of Projectile
Afterwhich, the air acts as a force oposite the direction of motion, thus slowing the projectile to it's terminal velocity, where the air resistance is equal to the gravitational pull on the object.
the air acts as a force oposite the direction of motion, thus slowing the projectile to it's terminal velocity, where the air resistance is equal to the gravitational pull on the object.
Terminal velocity refers to the speed at which the friction from the air is equal to the accelerating force therefore ceasing all acceleration.
www.physicsforums.com /showthread.php?p=1048004#post1048004   (786 words)

  
 Is terminal velocity constant?
I wonder if the OP isn't confusing different notions, the idea that everyday objects in free fall have a terminal velocity (atmosphere being assummed) and the fact that there is an absolute speed limit in the universe, the speed of light (in a vacuum).
Terminal velocity as it applies to (say) a person jumping out of an airplane is all about the friction between the person and the air.
But friction with the air varies as the square of the velocity, so the faster he goes the harder it is for the pull of gravity to make him go faster.
www.physicsforums.com /showthread.php?t=104558   (813 words)

  
 Terminal velocity experiments   (Site not responding. Last check: 2007-10-03)
Record how the velocity of a ball and the forces on it change as it falls - both with and without air friction.
Terminal velocity experiment 3 - Using the simulation to model a parachute jump
With the initial settings the ball reaches its terminal velocity before hitting the ground.
www.materialworlds.com /sims/TerminalVelocity/worksheets.html   (558 words)

  
 Physics of Skydiving - Terminal Velocity   (Site not responding. Last check: 2007-10-03)
Terminal velocity is the maximum velocity that a particular body can reach when falling through the air.
Gravity is acting equally on both of these objects, but because of the greater surface area to mass ratio of the feather, the feather reaches its terminal velocity much sooner.
Thus the terminal velocity he would reach would be lower than the terminal velocity he would reach if he dove from the plane head first.
ffden-2.phys.uaf.edu /211_fall2002.web.dir/DaneLenakerSkydiving/tvelocity.htm   (316 words)

  
 Free Fall and Air Resistance   (Site not responding. Last check: 2007-10-03)
The object is said to have "reached a terminal velocity." The change in velocity terminates as a result of the balance of forces; the velocity at which this happens is called the "terminal velocity."
Since the 150-kg skydiver weighs more (experiences a greater force of gravity), it will accelerate to higher speeds before reaching a terminal velocity.
Thus, more massive objects fall faster than less massive objects because they are acted upon by a larger force of gravity; for this reason, they accelerate to higher speeds until the air resistance force equals the gravity force.
www.glenbrook.k12.il.us /gbssci/phys/Class/newtlaws/u2l3e.html   (900 words)

  
 Rain Drop Terminal Velocity
The terminal velocity of a water drop is much smaller.
What you find: The fall velocity of a typical rain drop is such that it does not hurt us as it lands on us in a rain storm.
The fall velocity of a rain drop still allows it to have a fair amount of energy that it gives up when it hits the earth.
www.grow.arizona.edu /water/raindropvelocity.shtml   (303 words)

  
 Terminal velocity   (Site not responding. Last check: 2007-10-03)
He hailed the precision with which the terminal is being delivered as a remarkable achievement.
T5, as the new terminal is known, is a larger and more complicated project than any of these schemes, and was preceded by a decade-long planning battle, which has itself led to changes in the planning system for major projects.
As work goes on fitting out the terminal building, there is just as much activity beneath, where a new railway and tube station are being built alongside a multi-storey car park for 4 500 cars.
www.rics.org /Builtenvironment/Engineering/Civilengineering/terminal_velocity_biz0905.html   (1960 words)

  
 The Physics Classroom
The object is said to have "reached a terminal velocity." Any change in velocity terminates as a result of the balancing of the individual forces acting upon the object.
Since the 150-kg skydiver weighs more (experiences a greater force of gravity), he will have to accelerate to a higher speed before reaching his terminal velocity.
Thus, massive objects fall faster than less massive objects because they are acted upon by a larger force of gravity; for this reason, they accelerate to higher speeds until the air resistance force equals their gravity force.
www.physicsclassroom.com /Class/newtlaws/U2L3e.html   (966 words)

  
 Filmtracks: Terminal Velocity (Joel McNeely)
Terminal Velocity: (Joel McNeely) Ranking relatively low on the overall list of films by their intelligence level, Terminal Velocity is a rather mundane, though adequately interesting 1994 film about a normal guy who gets caught up in a Soviet spy plot and a whole lot of gold.
Audience reactions to Terminal Velocity were similar to those you'd receive for a typical straight-to-video flick or B-rate cable film.
Terminal Velocity is one that offers the same adrenaline kick to score fans on album.
www.filmtracks.com /titles/terminal_velocity.html   (767 words)

  
 Terminal Velocity - JREF Forum   (Site not responding. Last check: 2007-10-03)
Once you have the net force, the acceleration is simply the net force divided by the mass; velocity is the first integral of the acceleration, position is the second.
In general drag coefficients can change with velocity, and there are 3 regions in particular that should be noticeably different: laminar flow, turbulent flow, and supersonic flow.
The problem is that you have to change the rest of your dimensionless units too, which is often pretty much impossible.
forums.randi.org /showthread.php?p=1965184   (1566 words)

  
 ESPN SportsFigure - Interactive Zone Results
In the simplest model of air resistance, we find that the force due to the air is proportional to the square of the velocity of the object traveling through the air.
is the density of the air, A is the effective cross-sectional area, and v is the velocity.
For an object to reach terminal velocity vt,, the sum of the forces must be zero.
sportsfigures.espn.com /sportsfigures/lp_terminal_velocity.jsp?iAm=null   (724 words)

  
 Terminal velocity - The Boston Globe
All this at the new Terminal A at Logan, yes, our very own Logan International Airport, home of the constant parking crisis, the bleak waiting lounges that double as chronic construction sites, and the overpriced restaurants with surly service crammed along narrow walkways.
Delta seemed to rebuild this terminal overnight at a cost of $400 million, entirely with private dollars, no fuss, no muss, no leaks and falling tiles.
After I board the plane and look out the window at the gleaming new terminal, I vow to return, and next time I'll make it on a day when I don't have anyplace I need to be.
www.boston.com /news/local/articles/2005/03/29/terminal_velocity   (670 words)

  
 Terminal Velocity - California | Travel + Leisure   (Site not responding. Last check: 2007-10-03)
The film, which opens this month, tells the story of a man (Tom Hanks) stranded at JFK, who, due to an immigration snafu, is forced to live in a place where everyone else is merely passing through.
In many ways, the terminal is more than just a symbol of 21st-century life, it is also one of the stars of the film.
When Navorski has to make the terminal his home, we too are forced to reevaluate how we think and feel about airports.
www.travelandleisure.com /articles/terminal-velocity   (975 words)

  
 Amazon.ca: Terminal Velocity: Books: Blanche Mccrary Boyd   (Site not responding. Last check: 2007-10-03)
Ferociously paced, Terminal Velocity delineates six wonderfully engaging characters: Artemis Foote, for whom being rich, talented, and beautiful is a kind of game; Jordan, a messianic fugitive who becomes Ellen's lover; Amethyst Woman, a Marxist/Leninist dentist; Ross, a red-diaper baby and now a columnist for Ramparts; and Pearl, an art history professor turned hippie.
At the center of this vortex is Ellen, prior to her transformation happily married and a rising young editor at a genteel publishing house in Boston.
Together with these women, she is caught in the political and moral tailspin of the Sixties, living in a sexualized world-without-boundaries that leads them, eventually, to destruction, acceptance, and even redemption.
www.amazon.ca /Terminal-Velocity-Blanche-Mccrary-Boyd/dp/0679750320   (1049 words)

  
 Skydiving   (Site not responding. Last check: 2007-10-03)
Once the force of air resistance is as large as the force of gravity, a balance of forces is attained and the skydiver no longer accelerates.
The skydiver is said to have reached a terminal velocity.
The greater cross-sectional area of a skydiver in the spread eagle position leads to a greater air resistance and a tendency to reach a slower terminal velocity.
www.glenbrook.k12.il.us /gbssci/phys/mmedia/newtlaws/sd.html   (366 words)

  
 3D Realms Site: Terminal Velocity
Created by the former lead programmer of Microsoft Flight Simulator, Terminal Velocity features a fast frame rate, realistic outdoor environments, and the unique ability to fly through tunnels and into underground caverns.
Quite simply, Terminal Velocity is all about action, speed and destruction.
Terminal Velocity comes on CD-ROM only (the floppy disk version has been discontinued and is no longer available.) This version has everything: 70 Megs of 3D rendered cinematics, SVGA (640 by 480) support, high resolution replacement textures (add 16 times the graphics detail!), the BONUS planet!, eight network player support, and bonus games.
www.3drealms.com /tv   (442 words)

  
 Terminal Velocity   (Site not responding. Last check: 2007-10-03)
Skydivers in free fall achieve much greater terminal velocities, if they fail to open their parachutes on-time.
Since air drag tends to increase with increasing velocity, the gravitational force on any freely falling object will eventually be balanced by the drag force.
Were it not for terminal velocity, raindrops would be falling on us like killer bullets and sky divers would be out looking for another favorite pastime.
www.csulb.edu /~rtoossi/PhysicsBook/book/Chap06-NewtonsLaw/Newton_2ndLaw/terminal_velocity.htm   (208 words)

  
 Terminal Velocity - Movie Info - Moviefone
Movies Terminal Velocity (1994): find the latest news, photos and trailers, as well as local showtimes/dvd info at Yahoo!
Terminal Velocity is an action movie and it passes the first critical test of...
Terminal Velocity - Cast & Crew, movie showtimes, plot, synopsis, exclusive features, trailers, clips, theater listings, reviews, message boards, dvd, videos, rentals and more on Moviefone.
movies.aol.com /movie/terminal-velocity/1104/main   (135 words)

  
 Terminal Velocity for PC Review - PC Terminal Velocity Review
While Terminal Velocity definitely isn't the only game of its type, it does set itself apart in a couple of areas, most obviously the graphics.
From the shadows of the flying planes to the final huge explosions, the graphics make you feel like you're right in the middle of some futuristic dogfight.
All told, Terminal Velocity is the proverbial quick fix.
www.gamespot.com /pc/action/terminalvelocity/review.html   (436 words)

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