A boy is trying to push the concrete pillar of the building using a force of 300N. Calculate the amount of work done by the boy.
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Answer:
F = 300N , displacement = 0
w = F × D = 300 × 0 = 0
Explanation:
In terms of physics , work is done only when the applied force produces any motion in the object ( on which force is applied ).
That is , if there is no displacement or no motion
of the object on which force is applied then the work done is zero.
In the question , it is given that the force is applied on a concrete pillar , now it is obvious from the question that the pillar will not move from its place. Hence , the force of 300N applied on the pillar does not produce any motion / displacement. So if the displacement is zero
Amount of work done = force applied × displacement of the object
Work done = 300 × 0
Amount of work done = 0
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