Question

Two objects of mass 2 kg and 3 kg which are moving towards each other at velocities v1=3m/s and v2=2m/s. If the collision is a perfectly inelastic collision, find the final velocity after collision!

Answer 1

(m1.v1)+(m2.v2)=(m1+m2).v'
(2.3)+(3.2)=(2+3).v'
6+6=5.v'
12/5=v'

the final velocity after collision is 2,4m/s