A bullet of mass m moving horizontally with a velocity v strikes a block of wood of mass M and gets embedded in the block. The block is suspended from the ceiling by a mass less string. The height to which block rises is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
: The situation is as shown in the figure.
Let V be velocity of the block-bullet system just after collision. Then by the law of conservation of linear momentum, we get
…..(i)
Let the block rises to a height h.
According to law of conservation of mechanical energy,
We get
(Using (i))
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