Question

two objects of mass 1.5kg are moving in the same straight line but in the opposite direction. The velocity of each object is 2.5m/s before the collision during which they stick together . Find the combine velocity?

Answer 1

m1=1.5 kg
m2=1.5kg

u1=2.5m/s
u2=-2.5m/s(since it's going the opposite direction)

combined velocity=
m1u1+m2u2=(m1+m2)v
1.5(2.5)+1.5(-2.5)=(1.5+1.5)v
3.75-3.75=3v
0=3v
v=0

Answer 2

Two objects each of mass 1.5kg a moving in the same straight line be in opposite direction. The velocity of each object is 2.5m/s before the collision during with they stick together .What will be the velocity of thr combine object aftet collision . ​