A bomb of mass 30kg at rest explodes into two pieces of masses 18kg and 12kg. The velocity of 18kg mass is 6ms–1 . The kinetic energy of the other mass is______
A. 324 J
B. 486 J
C. 256 J
D. 524 J
Answer:A
A bomb of mass 30kg at rest explodes into two pieces of masses 18kg and 12kg. The velocity of 18kg mass is 6ms–1 . The kinetic energy of the other mass is______
A. 324 J B. 486 J C. 256 J D. 524 J