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Work Energy Theorem Application

A mass of 2...

Question

A mass of $2.5 k g$ is hung on a steel wire. This increase $0.25 c m$ in its length. Determine the work done to pull the wire. $(g = 10 m / s^{2})$

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Solution

Given that,

Mass $m = 2.5 k g$

Length $l = 0.25 c m$

Now, the work done is

$W = m g h$

$W = 2.5 \times 10 \times 0.25 \times 10^{- 2}$

$W = 0.0625 J$

Hence, the work done is $0.0625 J$

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