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October 23, 2014

Homework Help: General Physics I

Posted by VitaX on Wednesday, October 13, 2010 at 4:08am.

A 50-N force acts on a 2-kg crate that starts from rest. When the force has been acting for 2 s the rate at which it is doing work is:

I found this question online so I saw the answer is 2500 Watts. What I don't understand is how to come to this conclusion. Power = Work/time. The time is known but to find Work we need both the force and distance. How do I go about finding them? I assume I have to use that mass value somewhere in here, just not sure where.

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