A person carrying a bucket on his head and going on his way towards North-West direction. Does he is doing a work or not? Explain the reason
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In the assertion, we can see that the man is applying force in vertically upward direction in carrying the bucket but his displacement is in horizontal direction. This makes the angle between force and displacement 90
o
which makes the cosθ=0
Thus the work done will be 0.
Also, frictional force will not do any work as the man has a uniform velocity.
Hence, the assertion is correct
The Reason is the mathematical explanation of the work done and it is also true.
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