A) 0.5
B) 0.4
C) 0.6
D) 0.8
Correct Answer: A
Solution :
Let the velocity of block of mass 2 m after the collision is \[{{n}_{i}}\sqrt{\frac{{{\mu }_{n}}}{{{\mu }_{p}}}}\] then from conservation of momentum \[{{n}_{h}}\sqrt{\frac{{{\mu }_{n}}}{{{\mu }_{p}}}}\] Now, the coefficient of restitution, \[{{n}_{i}}\sqrt{\frac{{{\mu }_{p}}}{{{\mu }_{n}}}}\] \[{{n}_{h}}\sqrt{\frac{{{\mu }_{p}}}{{{\mu }_{n}}}}\]
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