A mass m slips along the wall of a semispherical surface of radius R. The velocity at the bottom of the surface is [ MP PMT 1993]

(1) Rg

(2) 2Rg

(3) 2πRg

(4) πRg

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

Concept Questions :-

Gravitational Potential energy

(2) By applying law of conservation of energy

mgR=12mv2v=2Rg  

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