Question

A body of mass 2 kg collides with a body of mass 1kg. Their initial velocities are 6m / s and 4m /s. If the velocity of the first body after collision is 14/3m/s. Find the velocity of the second body after collision? ​

Answer 1

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Here's ur answer

m1 = 2kg

m2 = 1kg

u1 = 6m/s

u2 = 4m/s

v1 = 14/3 m/s

v2 = ?

Using conservation of linear momentum,

Total initial momentum = Total final momentum

m1u1 + m2u2 = m1v1 + m2v2

2×6 + 1×4 = 2×14/3 + 1×v2

12+4 = 28/3 + v2

v2 = 16-28/3

v2 = 20/3 m/s

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Answer 2

20/3 m/s

explanation is given in the picture...