A net force of 47.0 N acts on a 53.0 kg body initially at rest. Compute the work (in joules) done by the force in the first second of time.

I feel like this question is really simple, but I just don't know where to start. Any help would be really appreciated. Thank you!

Question

A net force of 47.0 N acts on a 53.0 kg body initially at rest. Compute the work (in joules) done by the force in the first second of time.

I feel like this question is really simple, but I just don't know where to start. Any help would be really appreciated. Thank you!

anonymous · Answer

Acceleration = force / mass =(47/53)  [a constant]
Work=force x distance

distance = double integral of acceleration evaluated from t=0 to t=1, which evaluates to ½ x acceleration (still a constant)

Thus,
W=47 * ½(47/53) joules, or  20.8396 J

anonymous · Answer

Wow, thanks a lot! Took me a while to do the integration by myself, but I ended up getting it! Thank you very much!!