A 2m high person is holding a 25kg trunk on his head and is standing at a roadway bus terminus.has it done any work . justify your answer
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Answer:
no
Explanation:
his is not doing any work bcz as we know
work done = force × displacement× cos theta
since here force is applied perpendicular to the opp force of grav the angle is 90 degree
since cos 90° is 0 , work done will also be zero
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