Home Physics Center of Mass Conservation of Linear Momentum A particle of mass 4m which is at rest explo…
Physics Center of Mass Conservation of Linear Momentum MCQ (Single Correct)

A particle of mass 4m which is at rest explodes into three fragments. Two of the fragments each of mass m are found to move with a speed 'v' each in mutually perpendicular directions. The minimum energy released in the process of explosion is

A
(2/3) mv 2
B
(3/2) mv 2
C
(4/3) mv 2
D
(3/4) mv 2

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Text Solution

Verified by Experts
The correct answer is:
B

mv + mv + 2m 3 = 0

= = – ( + ) = –

k f = mv 2 + mv 2 + 2m

k f =

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