Question

According to this equation, F=ma, how much force is needed to accelerate a 70-kg runner at 5m/s2?

A.
350 m/s

B.
14 N

C.
350 N

D.
14 m/s

Answer 1

F=ma = 70*5 = 350N, therefore, 350N is needed to accelerate a 70-kg runner at 5m/s2.