Momentum and CollisionHard

Question

A particle of mass 4m which is at rest explodes into four equal fragments. All 4 fragment s scattered in the same horizontal plane. Three fragments are found to move with velocity v each as in the fig. The total energy released in the process of explosion

Options

A.mv2(3 - √2)
B.mv2(3 - √2)/2
C.2mv2
D.mv2 (1 + √2)/2

Solution

COLM ⇒ mvî + mvĵ + m + = 0
= - n

Total energy released
= mv2 + mv2 + mv2 + m
= mv2(3 - √2)

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