Question

Two balls of mass 2kg and 3kg are moving with velocities9m/s and 6m/s respectively along the line joining their centre collide elastically . calculate the velocity of light body if heavy body is found to be moving with8m/s after collision​

Answer 1

Answer:

12 m/s

Explanation:

before and after collision momentum is always conserved

m1u1+m2u2= m1v1+m2v2

(2×9) - (3×6)=(2×v1)-(3×8)

v1=12 m/s

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Answer 2

Answer:

the answer is 6m/s

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