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Second Law of Motion

Calculate the...

Question

Calculate the mass of a body, which is moving with an acceleration of $1.4$ $m / s^{2}$ when a force of $25$ kgf acts on it. $[g = 9.8 m / s^{2}]$

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Solution

Given,
$a = 1.4 m / s^{2}$
$F = 25 \times 9.8 = 245 N$
Force, $F = m a$
$m = \frac{F}{a}$
$\Rightarrow m = \frac{245}{1.4} = 175 k g$

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