Rankers Physics
Topic: Work Energy and Power
Subtopic: Principal of Conservation of Energy

A mass m slips along the wall of a hemispherical surface of radius R. The velocity at the bottom of the surface is Image related to
√Rg
2√Rg
√3Rg
√2Rg

Solution:

From Principal of conservation of Energy in absence of non-conservative forces,

Ui+ Ki= Uf+ Kf

mgR+0= 0+ ½mv²

v= √2gR

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