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Question
A pair ofbullocks exerts a force of 140 N on a plough. The field beingploughed is 15 m long. How much work is done in ploughing the lengthof the field?
A pair ofbullocks exerts a force of 140 N on a plough. The field beingploughed is 15 m long. How much work is done in ploughing the lengthof the field?
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Solution
Workdone by the bullocks is given by the expression:
Workdone = Force ×Displacement
W= F ×d
Where,
Appliedforce, F =140 N
Displacement,d = 15 m
W= 140 ×15 = 2100 J
Hence,2100 J of work is done in ploughing the lengthof the field.
Workdone by the bullocks is given by the expression:
Workdone = Force ×Displacement
W= F ×d
Where,
Appliedforce, F =140 N
Displacement,d = 15 m
W= 140 ×15 = 2100 J
Hence,2100 J of work is done in ploughing the lengthof the field.
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