NEET Physics Work,Energy and Power Questions Solved

A cord is used to lower vertically a block of mass M by a distance d with constant downward acceleration g4. Work done by the cord on the block is 

(1) Mgd4

(2) 3Mgd4

(3) 3Mgd4

(4) Mgd 

Concept Videos :-

#6 | Solved Problems on Potential Energy
#7 | Mechanical Energy

Concept Questions :-

Gravitational Potential energy
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