4
Question 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?
Given,
Force (F) = 140 N
Displacement (S) = 15 m
Work done = Force × Displacement
Substituting we get,
W = 140 x 15 = 2100 J
Hence, 2100 J of work is done in ploughing the length of the field.