a body of mass M is at height H from the ground as the body Falls freely under gravity is potential energy is
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E =mgh ................
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E. of the body = 0
P.E. of the body = m g h
Total energy of the body at
A = K.E. + P.E. = 0 + m g h = m g h
Suppose, the body falls freely from A to the ground and at a point B on its path, its height above the ground will become (h - x).
Therefore, potential energy of the body = m g (h - x)
potential energy =m.v (h-x)
P.E. of the body = m g h
Total energy of the body at
A = K.E. + P.E. = 0 + m g h = m g h
Suppose, the body falls freely from A to the ground and at a point B on its path, its height above the ground will become (h - x).
Therefore, potential energy of the body = m g (h - x)
potential energy =m.v (h-x)
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