A body of mass m has to be lifted by applied force to some height h .
(a) What is the minimum force required for this purpose?
(b) How much energy is transferred to the body?
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A body of mass m is taken from earth's surface to the height equal to the radius of earth, the change in potential energy will be of
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a) Force required = weight of object =
mg
b) energy transfer to body = work done by the person = mgh
mg
b) energy transfer to body = work done by the person = mgh
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