A heavy body of mass M moving with a velocity 10m/s collides elastically with a very light body of mass m at rest. The heavy body is brought to rest after the collision. The velocity of light body will be__
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a
1 m/s
b
5 m/s
c
10 m/s
d
0
answer is C.
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Detailed Solution
According to law of conservation of energy 12×M×(10)2=12mv2 ……….(1)According to law of conservation of momentumM×10=mv ………..(2)Divide eq. (1) by (2)v=10m/s
A heavy body of mass M moving with a velocity 10m/s collides elastically with a very light body of mass m at rest. The heavy body is brought to rest after the collision. The velocity of light body will be__