NEET 2019, Physics Q4: Work Energy Theorem And Its Applications

NEET2019Paper 2019Physics

Q.

Body A of mass 4m moving with speed u collides with another body B of mass 2m, at rest. The collision is head on and elastic in nature. After the collision the fraction of energy lost by the colliding body A is :

A
$\frac{1}{9}$
B
$\frac{8}{9}$
C
$\frac{4}{9}$
D
$\frac{5}{9}$

Solution

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