A pair of bullocks exert a force of $140\ N$ on a plough. The field being ploughed is $15\ m$ long. How much work is done in ploughing the length of the field ?

Force exerted on the plough $\overrightarrow{F}=140\ N$

Displacement$=$Ploughed field $d=15\ m$

The work done in ploughing the field $W=\overrightarrow{F}\times d$

$=140\ N\times 15\ m$

$=2100\ J$

Thus, $2100\ J$ work is done in ploughing the $15\ m$ length of the field.

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Updated on: 10-Oct-2022

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