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A runner has a mass of 89 kg. He produces a force of 84 Newtons between the ground and his running shoes. How fast does he accelerate?

Answer :

Force = mass × acceleration

acc= force / mass

84N/89kg

= 0.94m/s

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Rewritten by : Barada

The acceleration of the runner is 0.9 m/[tex]s^{2}[/tex].

We have a runner has a mass of 89 kg he produces a force of 84 Newtons between the ground and his running shoes.

We have to determine the acceleration of the runner.

What is the formula to calculate the force on a body ?

The force on a body is the product of mass and acceleration. Mathematically -

F = ma

According to the question, we have -

Force = 84 N

Mass = 89 Kg

Therefore -

F = ma

84 = 89 x a

a = 84/89 = 0.9 m/[tex]s^{2}[/tex]

Hence, the acceleration of the runner is 0.9 m/[tex]s^{2}[/tex].

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