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Question 4

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

Applied force, F = 140 N

Displacement, d = 15 m

Work done = force x displacement

W = 140 × 15 = 2100 J

Work done is 2100 J.

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