Question

If a sprinter’s mass is 60 kg, how much forward force must be exerted on the sprinter to make the sprinter accelerate at 0.8 m/s2?

Answer 1

Forward force is 60×0.8
=48N

Answer 2

The forward force must be exerted on the sprinter to make the sprinter accelerate is 48N.

What is Newton's second law of motion?

It states that the force F is directly proportional to the acceleration a of the body and its mass.

The law is represented as

F =ma

Given is the mass of sprinter m =60 kg and the acceleration a =  0.8 m/s², then the force will be

F = 60 kg x   0.8 m/s²

F = 48N

Thus, the forward force is 48N.

Learn more about Newton's second law of motion.

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