Question
Physics Question on Work and Kinetic Energy
A body of mass (4m) is lying in x-y plane at rest. It suddenly explodes into three pieces. Two pieces, each of mass (m) move perpendicular to each other with equal speeds (v). The total kinetic energy generated due to explosion is :
A
23mv2
B
2mv2
C
4mv2
D
mv2
Answer
23mv2
Explanation
Solution
The correct option (A): 23mv2