In which case is a collision between two objects completely inelastic?

The sum of the velocities of the two objects is the same before and after.

The two objects leave at +30° and 30° from the original direction.

The two objects stick together.

The two objects bounce off each other at the same speed as before.

Question

In which case is a collision between two objects completely inelastic?

       The sum of the velocities of the two objects is the same before and after.

       The two objects leave at +30° and 30° from the original direction.

       The two objects stick together.

       The two objects bounce off each other at the same speed as before.

amistre64 · Answer

rubber balls bounce; matza balls dont.

which one do you think represents an inelastic collision with the ground and why?

anonymous · Answer

the two objects stick together?

amistre64 · Answer

yep