A body of mass 4 m is lying in xy-plane at rest. It suddenly explodes into three pieces. Two pieces each of mass m move perpendicular to each other with equal speed v. The total kinetic energy generated due to explosion is
A. mv2
B. 3/2 mv2
C. 2mv2
D. 4mv2
Answer:B
A body of mass 4 m is lying in xy-plane at rest. It suddenly explodes into three pieces. Two pieces each of mass m move perpendicular to each other with equal speed v. The total kinetic energy generated due to explosion is
A. mv2 B. 3/2 mv2 C. 2mv2 D. 4mv2