Question

A mass 2 Kg moving with a speed of 100
m/s collides and sticks
t o a mass of 5 Kg.
What is the velocity

and momentum after
the collision.

answer this question

Answer 1

Hlo mate :-

Solution :-

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☆ Total initial momentum = m1×v1 + m2×v2 = 2×3+3×0 = 6 kgm/s

●Momentum conserved, hence final momentum 6 = (m1+m2)×v; v = 6/(2+3) = 1.2 m/s


●final kinetic energy = (1/2)(m1+m2)v2 =(1/2)×5×1.2×1.2 = 3.6 kgm/s

 

●loss in kinetic energy = 6-3.6 = 2.4 kgm/s

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