Where results make sense

About us   |   Why use us?   |   Reviews   |   PR   |   Contact us

Vectors and Direction Vector quantities are often represented by scaled vector diagrams. The magnitude of a vector in a scaled vector diagram is depicted by the length of the arrow. The magnitude of a vector is represented by the length of the arrow; a scale is indicated (such as, 1 cm = 5 miles) and the arrow is drawn the proper length according to the chosen scale. www.glenbrook.k12.il.us /gbssci/phys/Class/vectors/u3l1a.html   (1105 words)

Displacement (vector) - Wikipedia, the free encyclopedia In Newtonian mechanics, displacement is the vector that specifies the position of a point or a particle in reference to an origin or to a previous position. The SI unit for either distance or the displacement magnitude is the meter. This use of displacement vector is useful for defining the velocity and acceleration vectors of the particle. en.wikipedia.org /wiki/Displacement_(vector)   (267 words)

The Physics Classroom If displacement vectors A, B, and C are added together, the result will be vector R. As shown in the diagram, vector R can be determined by the use of an accurately drawn, scaled, vector addition diagram. Add two or more velocity vectors and the result is a resultant velocity; add two or more force vectors and the result is a resultant force; add two or more momentum vectors and the result is... In all such cases, the resultant vector (whether a displacement vector, force vector, velocity vector, etc.) is the result of adding the individual vectors. www.physicsclassroom.com /Class/vectors/U3L1c.html   (288 words)

Motion, Displacement and Velocity The magnitude of the average velocity vector is measured in meters per second, m/s, and may or may not have any meaningful physical interpretation; this depends on the details of the motion. The magnitude of the displacement vector is measured in meters, m, and is the distance of the ball from the origin. The relative displacement vector is found by subtracting the displacement vector at the initial time0.5s from the displacement vector at the final time 0.6s. ntbox.utsa.edu /nash/motion/motion.html   (1817 words)

Vectors   (Site not responding. Last check: 2007-11-05) The direction north would be at 90 degrees since a vector pointing east would have to be rotated 90 degrees in the counter-clockwise direction in order to point north. The direction of west would be at 180 degrees since a vector pointing west would have to be rotated 180 degrees in the counter-clockwise direction in order to point west. The magnitude and direction of the vector is clearly labeled; in this case, the diagram shows the magnitude is 20 m and the direction is (30 degrees West of North). www.cgtcollege.org /mat193/vector_lesson.htm   (1363 words)

Position and Displacement The magnitude of a vector quantity is a number (with units) telling you how much of the quantity there is and the direction tells you which way it is pointing. The sum is the arrow drawn from the tail of the first vector to the tip of the last vector. The position vector of a point P with coordinates (a, b, c) is the displacement vector from the origin to P. It may be written in terms of its components as P = ai + bj + ck. electron9.phys.utk.edu /phys135d/modules/m1/position.htm   (861 words)

The Biomechanics of Skating: Linear Kinematics In fact, dividing a vector (e.g., displacement) by a scalar (the time interval) always produces a vector -- one that's in the same direction as the original vector, but with its magnitude divided by the scalar. For instance, if the displacement is 3 m in the NW direction over a time interval of 6 s, then the average velocity will be a 0.5 m/s in the NW direction. The direction of the vector is the direction of the motion at that instant, and its magnitude is called the instantaneous speed. btc.montana.edu /olympics/physbio/physics/kin11.html   (215 words)

Kinematics in Two and Three Dimensions Displacement is a vector measure of the interval between two locations measured along the shortest path connecting them. Displacement is a vector and vectors have direction, so it's best to diagram this problem (a procedure that's remarkably useful in general). The resultant displacement is the vector sum of the two displacements experienced during the trip. hypertextbook.com /physics/mechanics/kinematics-two-three   (1644 words)

SparkNotes: SAT Physics: Work If force and displacement are at an angle to one another, you need to calculate the component of the force that points in the direction of the displacement, or the component of the displacement that points in the direction of the force. Displacement is a vector quantity that is not the same thing as distance traveled. We have to multiply the force by the component of the displacement that is parallel to the force. www.sparknotes.com /testprep/books/sat2/physics/chapter7section1.rhtml   (1647 words)

Improving Snakes for Linear Feature Displacement in Cartographic Generalization Displacement is necessary mainly due to increased symbol width of roads. In the generalization process such a displacement vector is often the result of a previous algorithm specifying the amount and direction of displacement that would resolve a proximity conflict between two lines in the conflict spot. Such a displacement vector is usually the result of a previous algorithm based on an analysis of the conflict area. www.geocomputation.org /2000/GC034/Gc034.htm   (4840 words)

Rotating Reference Frame The length of displacement vector dr is equal to the length of the arc confined by points P and P': is the displacement due to the rotation of the point with the rotating frame while dr' is the remainder of the displacement. Rather, dr' is the displacement of point P observed in the rotating frame and is in fact the displacement of point P relative to the rotating frame. kwon3d.com /theory/rotsys/rotfrm.html   (481 words)

VECTOR Given two points A and B, is the vector with its base at A and tip at B. Its magnitude is the distance between A and B and its direction is in the direction from A toward B. Equivalent vectors describe the same relationship between different sets of points. spatial vectors that are used by a coordinate system (cs) to describe all other spatial vectors in that system using coordinates. These coordinates may represent a displacement vector, position vector, translation vector etc.The coordinates must be used with an understanding of what they represent and in what reference frame. personal.uncc.edu /jamiller/terms/VECTOR.htm   (453 words)

Representing Vector Quantities The simplest physical vector quantity to visualize is probably the displacement vector. The length of the arrow is proportional to the magnitude of the displacement vector d In spherical coordinates a vector is specified by its length and the angles the vector makes with the x- and z-axis. electron9.phys.utk.edu /vectors/representations.htm   (554 words)

KINEMATICS (DESCRIPTION OF MOTION- displacement, velocity, acceleration)   (Site not responding. Last check: 2007-11-05) The displacement vector is the prototype for all vectors The two vectors a and b in the x-y plane reflect across the y-z plane into the vectors a’ and b’ as shown. We could represent a rotation by a vector whose magnitude is equal to the angle of rotation and whose direction is perpendicular to the plane of rotation. www.mbhs.edu /~halperin/kinematics_files/kinematics.html   (1816 words)

GameDev.net - 3. Vectors One of the simplest quantities to represent using vectors is displacement (change in position). Displacement vectors can be calculated by simply subtracting the destination point in 3d space from the starting point. The unit vectors I, j, and k are typically utilized in conjunction with some scalar quantity. www.gamedev.net /reference/articles/article435.asp   (686 words)

Vectors and Motion That you can't subtract a y-component from an x-component. The magnitude of the displacement vector is distance. So, the distance (which is the magnitude of the displacement vector and is the hypotenuse of the right triangle formed by the x and y components of the displacement vector) is acme.highpoint.edu /~atitus/phy211/lessons/vectors-motion/2.html   (751 words)

[No title]   (Site not responding. Last check: 2007-11-05) If a mass at the origin 0 moves to P, its displacement R is the vector drawn from 0 to P. That is, the magnitude of R is the distance between 0 and P and its direction is the direction of P relative to 0. The x- and y-components of this vector are the distances east and west that are traveled. All vectors behave as the displacement vector because all vectors are related to it. www.dac.neu.edu /physics/a.cromer/Physics1192/Vectors.html   (1538 words)

Displacement - Outline   (Site not responding. Last check: 2007-11-05) Introduce the scalar components of the displacement vector as the changes in the x and y coordinates as one goes from one point to another. Illustrate these changes, i.e., the scalar components of the displacement vector graphically as lines starting at the tail end of the displacement vector that can be moved along with the displacement vector. System draws displacement vector from first to second point and calculates its scalar components as the difference of the coordinates of the two points. www.ucalgary.ca /~alphy/MAP/workinprogr/Dis/ItemDescr.htm   (418 words)

Quantifying real vectors; their size or length   (Site not responding. Last check: 2007-11-05) Two vectors are equal if they have the same entries (in the same order). A vector is said to be a unit vector if it has size one, so if the sum of the squares of its entries is one. In any dimension, the only real vector of size zero is the vector all of whose entries are zero. www.math.pitt.edu /~sparling/23021/23021vectors1/node9.html   (474 words)

[No title]   (Site not responding. Last check: 2007-11-05) The converse problem of finding the components of a vector given the magnitude and direction of the vector is also solved by trigonometry. If this is followed by a displacement B = 2i + 4j we are moved 2 units farther along the x axis and 4 units farther along the y axis, bringing us to the point (9, 7). The displacement between two points has an x-component of -5 m and a y-component of 3 m. www.dac.neu.edu /physics/a.cromer/Physics1191/Vectors.html   (1637 words)

Aircraft Translations The total displacement is a vector quantity with the x-, y-, and z-displacements being the components of the displacement vector in the coordinate directions. All of the quantities derived from the displacement are also vector quantities. Velocity is a vector quantity; it has both a magnitude and a direction. www.grc.nasa.gov /WWW/K-12/airplane/translations.html   (636 words)

No Title In one dimension, the dispacement, velocity, and acceleration vectors were all parallel to the trajectory of the motion and therefore had one nonzero component. The instantaneous velocity vector is always parallel to the tangent to the object's path and points toward the direction of the motion. In order to perform such a vector addition component by component, it is often convenient to choose one of your axes along the direction of the centripetal acceleration (i.e. www.vanderbilt.edu /AnS/physics/perakis/L3_00/L3_00.html   (1467 words)

Lines, Planes and Vectors - HMC Calculus Tutorial In this tutorial, we will use vector methods to represent lines and planes in 3-space. First, compute displacement vectors u and v between two pairs of these points. Now, use one of the points and the vector n = u × v to obtain the equation of the plane. www.math.hmc.edu /calculus/tutorials/linesplanesvectors   (296 words)

BME 332: Strain/Deformation Note that we have defined a vector in 3D space x' in the reference configuration of the body and a vector x in the deformed configuration of the body. The infinitesimal material vector in the reference configuration, dx', is shown in red in the reference configuration. One way we can do this is to use the deformation gradient tensor, which gives the material vector dx in the deformed configuration in terms of the material vector dx' in the reference configuration. www.engin.umich.edu /class/bme332/ch3strain/bme332straindef.htm   (3457 words)

Rocket Vectors Mathematicians have defined what it means to "add" two vectors to get a resultant vector: you draw the two vectors so that the tail of one starts at the head of the other, and join the ends to make a new vector. The displacement thru the center is the resultant of the two side displacements. This means that velocity also "works" like a vector: in one minute, each velocity vector generates a displacement vector of the same direction and relative size. www.cpo.com /Weblabs/rracev.htm   (1008 words)

Question 2   (Site not responding. Last check: 2007-11-05) , then doubling the length of the resulting vector and then attaching it to the tip of as the sum of two vectors, one perpendicular to a displacement (units meters), how much work is done by the force www.math.pitt.edu /~sparling/23021/23021ex1s/node3.html   (93 words)

Kinematics Or it can be answered in terms of a displacement (vector) such as 12.0 km +,.750 km south or 5.25 m @ 68.5°. is the vector quantity which describes the rate of linear motion of a body in a particular direction. This is because velocity is a vector quantity itself and is therefore composed of a magnitude and a direction. www.naschools.net /teachers/physicskinetics.htm   (375 words)

Animated Test of Motion measure the x and y components of the displacement and divide by the time interval to calculate the x and y components of the average velocity for linear motion along an axis, linear motion at some angle relative to the x-axis, and curved motion including parabolic motion and circular motion Objectives covered the primary principles in kinematics, mainly displacement, average velocity, instantaneous velocity, average acceleration, and instantaneous acceleration. In the spring of 2002, a set of 6 assignments with approximately 8 questions per assignment were given to students as a trial to check the readability and technology. webphysics.davidson.edu /physlet_resources/pretest/information.html   (1270 words)

Ocular Counterroll Modulates the Preferred Direction of Saccade-Related Pontine Burst Neurons in the Monkey -- ...   (Site not responding. Last check: 2007-11-05) B: hypotheses (I-IV) of a craniocentric and oculocentric representation of the eye displacement (d-vector, white arrow upward) and the eye rotation (r-vector, fl arrow upward) coding scheme for a hypothetical PPRF burst neuron with a leftward preferred direction. Due to rotation kinematics, the corresponding eye rotation (r-) vector and the gaze (g-) vector, in contrast, rotate by 1/2 the amount of OCR. The location of each circle indicates the saccade displacement (d-vector) in the horizontal-vertical plane, whereas the size of each circle encodes the number of spikes in the saccadic burst. jn.physiology.org /cgi/content/full/86/2/935   (8214 words)

Displacement Current This formula can be used to find the total amount of displacement current flowing through a surface, but it doesn't indicate its direction. As with conduction current, the displacement current density is the displacement current per unit area. The physical meaning of this displacement current is that a changing electric field makes a changing magnetic field. maxwell.byu.edu /~spencerr/websumm122/node72.html   (551 words)

Try your search on: Qwika (all wikis)

About us   |   Why use us?   |   Reviews   |   Press   |   Contact us   Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.