Question

A boy pushes on a parked car with a force of 200 N. The car does not move. How much work does the boy do on the car?

Answer 1

Zero.

Explanation:

Work is done when a force moves an abject over a distance(`x`) . Mathematically, it is written as:

`W=Ftimes x`

In this case, we are told that "car does not move", meaning it does not travel any distance. Therefore, `x=0`.

`W=Ftimes 0 = 0`

Hence, no work is done by the boy on the car.