A bomb of mass 16 kg at rest explodes into two pieces of masses of 4 kg and 12 kg. The velocity of the 12 kg mass is 4 ms –1 . The kinetic energy of the other mass is
Text Solution
Verified by ExpertsThe correct answer is:
C
By conservation of linear momentum
P i = P f ⇒ 0 = 12 × 4 + 4 × v ⇒ v = 12 m/s
So, kinetic energy of other mass is 
mv 2 = 
× 4(12) 2 = 288 J,
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