A bag of sand of mass M is suspended by a string. A bullet of mass m is fired at it with velocity v and gets embedded into it. The loss of kinetic energy in this process is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Initial kinetic energy of bullet = 
After inelastic collision system moves with velocity V
By the conservation of momentum
⇒ ⇒ 
Kinetic energy of system = 
= 
Loss of kinetic energy = 
= 
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