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# Hi I am doing and exam review studying and need help with this question and how to solve it. Please help!

Thanks

A 800-kg car speeds up from rest to 38 mph in 4.1 seconds. What is the work done on the car and what is the average power of the car's engine? Use kJ and kW as the units and do not forget to convert mph to m/s.

The work done on the car by the net force, W1 =?

The power of the engine, P =?

How much work is required to speed up this car from rest to 76 mph? W2 =?

How much work is required to speed up this car from 38 mph to 76 mph? W3 = ?

#### Top Answer

Work done; W 1 = 115.4 KJ Average engine... View the full answer

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