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A cord is used to vertically lower an initially stationary block of mass M = 14 kg at a constant downward acceleration of g/7. When the block has fallen a distance d = 3.5 m, find

(a) the work done by the cord's force on the block,

(b) the work done by the gravitational force on the block,

(d) the speed of the block. (Note : Take the downward direction positive)

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Category:- Physics
Reference No.:- M91074213

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