a 2kg object moving east collides with a 3kg object @rest.after the collision both objects stick 2gether. find

Question

the rest of the question is, find the speed and direction of the 2 objects just after the collision.

Answer 1

this is a conservatin of momentum question.

Velocity is a vector, so direction is important.

m1*v1i+m2*v2i=m1*v1o+m2*v2o

we know that v2i=0, since the 3 kg object is at rest.

We also know that v1o=v2o since the objects stick together,
call it vo

you didn't provide v1i, so the answer will be expressed in terms of v1i
2*v1i=(2+3)*vo
2*v1i/5=vo

the direction will be easterly since the center of mass is constant.

j