A body of mass 10 kg falls from a height of 50 cm. Calculate : (i) velocity of the body (ii) kinetic energy of body when it just reaches the ground level. Does the velocity depend upon the mass of the body? Explain. [Take g = 10 m s-2
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Answer:
Mass=10 kg
Height = 50 cm =0.5 m
W= mgh
=10*10*0.5
=50 J
Since kinetic energy=potential energy by law of conservation of energy
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