Homework Help: physics

Posted by jerry. on Wednesday, August 4, 2010 at 12:32pm.

a power = work/time question.

A broken car is being pushed to a garage.
a) work out the drivers output if he takes 1 hour and 45 mins to push his car 2km with a force of 900N.

b) work out the total power output if the driver has to stop for a 30 minute kip halfway.

c) the driver's maximum power output is 500W. how long would it take him to push the car to the garage at maximum output?

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