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A bucket of mass ‘m’ tied to a light rope is lowered at a constant acceleration of ‘g/4’. If the bucket is lowered by a distance ‘d’, the work done by the rope will be (neglect the mass of the rope)

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By Expert Faculty of Sri Chaitanya
a
m g d/4
b
3mgd/4
c
-3mgd/4
d
-5mgd/4
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detailed solution

Correct option is C

W = F S COS 1800= -M(g-g4)d=-3mgd4


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