Question

The first five questions refer to the following problem:

Answer 1

The net force on the rocket is directed upward with a magnitude of

35 N - 25 N = 10 N

By Newton's second law, the acceleration a is such that net force is equal to the mass of the rocket times its acceleration:

10 N = (2.5 kg) a

a = (10 N) / (2.5 kg)

a = 4 m/s²