Question

A particle of mass m₁ moving with velocity v collides with a mass m₂ at rest, then they get embedded. Just after collision, velocity of the system
(a) increases
(b) decreases
(c) remains constant
(d) becomes zero

Answer 1

Initially the velocity system is v and finally the system velocity will remain v.

M1×v=(M1+M2)×v'
v'=M1v/(M1+M2)

v' is the common velocity of both the masses.
So,velocity of system is remains constant.

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