The kinetic energy of an object is 40 joules, if its mass is 5 kg… - Vidyadip

Question

The kinetic energy of an object is 40 joules, if its mass is 5 kg then what will be the velocity of the object?

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Answer

$\begin{aligned}
K . E . & =\frac{1}{2} m v^2 \\
40 & =\frac{1}{2} \times 5 \times v^2 \\
v^2 & =16 \\
v & =4 m / s
\end{aligned}$

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