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A particle is moving along x-axis with v...

A particle is moving along x-axis with velocity 40 m/s. It breaks into two parts in mass ratio 1:2. If speed of smaller part is 60 m/s along x-axis then find fractional changes in kinetic energy of system.

A

`1/8`

B

`3/7`

C

`1/6`

D

`2/5`

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B
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