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JEE Main 10 April 2015 Paper

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Question : 3

Total: 90

A block of mass m=10kg rests on a horizontal table. The coefficient of friction between the block and the table is 0.05. When hit by a bullet of mass 50 g moving with speed υ , that gets embedded in it, the block moves and comes to stop after moving a distance of 2 m on the table. If a freely falling object were to acquire speed

after being dropped from height H then neglecting energy losses andtaking g=10ms−2,the value of H is close to :

0.2 km
0.3 km
0.4 km
0.5 km
None of the above

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