Collisions Questions

A mass ‘$m$ ’ moves with a velocity $v$ and collides inelastically with another identical mass. After collision the 1st mass moves with velocity $v/\sqrt{3}$ in a direction perpendicular to the initial direction of motion. Find the speed of the 2nd mass after collision:

A block of mass $0.50\text{kg}$ moving at $2.00\text{m/s}$ on a smooth surface strikes another mass of $1.00\text{kg}$ and they move together. The energy loss during collision is:

Statement-1: Two particles moving in the same direction do not lose all their energy in a completely inelastic collision.Statement-2: Principle of conservation of momentum holds true for all kinds of collisions.