Physics Work, Energy, Power and Collision JEE Main 2019 - ( Center of Mass Momentum Conservation and Collision ) MCQ (Single Correct)

Two particles, of masses M and 2M, moving, as shown, with speeds of m/s and 5 m/s, collide elastically at the origin. After the collision, they move along the indicated directions with speeds and respectively. The values of and are nearly:

A
6.5 m/s and 6.3 m/s
B
3.2 m/s and 3.6 m/s
C
6.5 m/s and 3.2 m/s
D
3.2 m/s and 12.6 m/s

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Text Solution

Verified by Experts
The correct answer is:
A

JEE Main 2019

Apply conservation of linear momentum in X and Y direction for the system then

… (i)

Also,

… (ii)

Solving equation (i) and (ii)

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