40. An electric motor raises a load of 0.2 kg, at a constant speed, through a vertical distance of 3.0 m in 2:
the acceleration of free fall is 10 m/s2, the power in W developed by the motor in raising the load is :
(a) 0.3
(b) 1.2
(c) 3.0
(d) 6.0
41. An object is falling freely from a height x. After it has fallen a height, it will possess :
(h) only kinetic energy
Answers: 2
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40. An electric motor raises a load of 0.2 kg, at a constant speed, through a vertical distance of 3...
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