Questions
A bomb of mass 30 kg at rest explodes into two pieces of masses 18 kg and 12 kg. The velocity of 18 kg mass is 6 ms-1 . The kinetic energy of the other mass is
detailed solution
Correct option is B
According to law of conservation of linear momentum mAvA=mBvB=18×6=12×vB⇒vB=9 m/s K.E. of mass 12 kg, EB=12mBvB2=12×12×(9)2=486JTalk to our academic expert!
Similar Questions
In the figure shown, the cart of mass 6m is initially at rest. A particle of mass m is attached to the end of the light rod which can rotate freely about A. If the rod is released from rest in a horizontal position shown, determine the velocity vrel of the particle with respect to the cart when the rod is vertical.
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