Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s.

What is the net force acting on the body?

1 answer

The acceleration is
a = 8.0/2.0 = 4.0 m/s^2

The net force acting upon it is
F = m a = 4 * 4 = 16 newtons

Make sure you learn Newton's Law,
F = m a.

F if the net force and m is the mass.