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 | | It is convenient, when we use the second law, to draw a free-body diagram--that is, a diagram in which we isolate the body, perhaps by drawing a dashed curve round it (our artist has laid a patch of color over it)--and draw vectors representing all the external forces acting on it. |
 | | In Figure 24.9 the block is drawn with three vectors on it: W, the weight, which is the gravitational pull of the earth on the block; R, the force of reaction of the table on the block; F, the pull exerted by the cord connecting the block and the spring balance. |
 | | here is a quote from the textbook trove defining free body diagram--" a diagram in which we isolate the body, perhaps by drawing a dashed curve round it and draw vectors representing all the external forces acting on it. |
| www.physics.csbsju.edu /RPEG/special/mall_search.4.dat (2890 words) |
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