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Physics 10 Online
OpenStudy (anonymous):

Does time effect the work done?

OpenStudy (anonymous):

work done=force * displacement*cos(theta) ..so workdone only depends on force vector and displacement vector ..it does not depends on time..but power depends on time because power is the workdone per unit time..

OpenStudy (anonymous):

But F=MA and A depends on time so why is it that time does not affect work done

OpenStudy (richyw):

work is given by the line integral \[\int_C\mathbf{F}\cdot d\mathbf{x}=\int_{t_1}^{t_2}\mathbf{F}\cdot \mathbf{v}\,dt\]where v is the velocity. So yeah the work done "depends" on time. In fact the time derivative of work is power

OpenStudy (anonymous):

there is two types of forces, one is velocity dependent and other one is velocity independent forces, so richyw is talking about first type and taufique is talking about second type........

OpenStudy (anonymous):

1. |dw:1357679432683:dw| 2.|dw:1357679632403:dw|

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