An athlete running at a constant acceleration of $2.5 m s^{- 2}$ , produces a force of $180 N$ . What is the mass of the athlete?

68 k g

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70 k g

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72 k g

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74 k g

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Solution

The correct option is C $72 k g$
Given: magnitude of force produced by athlete $F = 180 N$ and constant acceleration $a = 2.5 m s^{- 2}$ .
Let the mass of the athlete be m.

Using Newton's second law of motion,:
$F = m \times a$
$\Rightarrow$ $m = \frac{F}{a} = \frac{180}{2.5} = 72 k g$
Therefore, mass of the athlete is $72 k g$ .

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An athlete running at a constant acceleration of 2.5 ms−2, produces a force of 180 N. What is the mass of the athlete?

The correct option is C 72 kgGiven: magnitude of force produced by athlete F=180 N and constant acceleration a=2.5 ms−2. Let the mass of the athlete be m. Using Newton's second law of motion,: F=m×a ⇒m=Fa=1802.5=72 kg Therefore, mass of the athlete is 72 kg.

An athlete running at a constant acceleration of $2.5 m s^{- 2}$ , produces a force of $180 N$ . What is the mass of the athlete?