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Unformatted text preview: pull with a force of 2 Newtons, moving the block a total of 3 meters. s F Fs s F W r r ⋅ = = = cos parallel s cos parallel F F = F r Chapter 7 Definition of “work” for varying force When a particle moves a distance ds under constant force the work is the distance multiplied by the component of the force which is parallel to ds ∫ ⋅ = ⋅ = = s d F W s d F Fds dW r r r r θ cos ds F r cos parallel F F = Chapter 7 Definition of “work” varying force ∫ ⋅ = ⋅ = = s d F W s d F Fds dW r r r r cos F cos s When a particle moves a distance ds under constant force the work is the distance multiplied by the component of the force which is parallel to ds...
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This note was uploaded on 12/29/2011 for the course PHYSICS 171 taught by Professor La porta during the Fall '11 term at Maryland.
 Fall '11
 LA PORTA
 mechanics, Force, Work

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