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If the force acting on a body is 15 N, and the acceleration is 9 m/s², what must be the mass of the body?

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2.5 kg

1.67 kg

0.25 kg

5 kg

answer is B.

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Detailed Solution

Given,
F = 15 N, a = 9 m/s²

We know that F = ma

Where F is force; a is acceleration; m is the mass of the body.

Substituting the values in the formula, to get mass.

F = ma.

15 = m x 9

m = 1.67 kg

Therefore, the mass of the body must be 1.67 kg.

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