(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A car of weight 7000N travels at a steady speed of 8m/s up a steady incline at 15degrees above the horizontal. The car's motion is opposed by a constant frictional force of 500N.

2. Relevant equations

Calculate:

a) the gain in p.e per second

b) the work done per second against friction

c) the car's engine power.

3. The attempt at a solution

I keep getting the wrong answer. It would be easier if I knew the distance traveled by the car but I don't know any suitable formula.

Help is appreciated!

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# Homework Help: Need help with a Work and Energy problem

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