Question

A 6 kg mass a moving with a velocity of 2m/s collides with a 4kg mass b moving with a velocity of 1.5 m/s in the opposite direction in a straight line. If the masses get stuck, the velocity of combination is

Answer 1

m1v1+m2v2=(m1+m2)v

6*2+4*1.4=(6+4)v

16.56=10v

v=1.656 m/s