Question

According to this equation, F=ma, how much force is needed to accelerate a 65-kg runner at 8m/s2?
a. 8 m/s
b. 520 N
c. 520 m/s
d. 8 N

Answer 1

Because F=ma,
F=65×8
∴F=520N

Force is measured in Newtons (N), and so the answer is B and not C (m/s is a unit for velocity)

Answer 2

Answer:

B 520N

Explanation: