A boy of mass m climbs up the stairs of vertical
height h.
(a) What is the work done by the boy against the
force of gravity ?
(b) What would have been the work done if he uses
a lift in climbing the same vertical height ?
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A boy of mass m climbs up the stairs of vertical
height h.
(a) What is the work done by the boy against the
force of gravity ?
(b) What would have been the work done if he uses
a lift in climbing the same vertical height ?
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Explanation:
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Answer:
a
Explanation:
a because the force of gravity is greater than the force of attraction