Question

A small electric motor produces a force of 3 N that moves a remote-control car 4 m every second. How much power does the motor produce?

Answer 1

f = force = 5N

v = velocity = 4m/s

p = power

p = force * velocity

Replacing:

p= 3N * 4 m/s = 12W

The motor produces 12W of power.