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Question -

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?



Answer -

Work done by the bullocks is given by the expression:
W= F × d
Where,
Applied force, F = 140 N
Displacement, d = 15 m
W= a hundred and forty × fifteen = 2100 J
Hence, 2100 J of labour is finished in tilling the length of the sector.

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