A pair of bullocks exerts 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?
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Here, Work done, W = ? `” “` (To be calculated)
Force, F = 140 N
And Distance, s = 15 m
Now, `W = F xx s`
So, `W = 140 xx 15`
W = 2100 J
Thus, the work done in ploughing the length of field is 2100 joules.