Question

A car covers 100 meters in 10 seconds. To do this, the wheels put a force of 500 Newtons on the ground. What is the power of the car?

Answer 1

Power is the energy dissipated or used per time. It is the rate of doing work. It is expressed as P= W/t. Work can be calculated from the product of force and distance. We calculate as follows:

P = Fd/t
P = 500(100) / 10
P = 5000 J/s or 5000 W