vertically? [g =10 
]
Answer:
The power delivered to a body can also expressed in term
of the force F applied to the body and the velocity v of the
body.
Power, 
(b) Power P = Fv
100 = mgv
100 = m x 10 x 1 or w = 10 kg
Therefore, man working at the power of 100 W can lift 10
kg.
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