Please show all steps Momentum and impulse

MM 1) Two identical 8. 00 kg air pucks collide on a frictionless air table that is horizontal. One puck was originally at rest. a) If the incoming puck was moving at 6.00 m/s [E] and then bounces off the other one at 4.00 m/s [30.00 N of E], what is the velocity of the second puck? (/6) b) Prove the collision is inelastic. {/4) 2) A 90.0 kg ice hockey pla er hits a 0.150 kg puck at a net 15.0 m straight down the ice. The uck moves own the frictionless ice at 45.0 m/s and initial y both the player and t e puck were at rest. How far does the player recoil in the time it takes the puck to reach the net? {/6) 3) A 0.240 kg billiard ball moves at 3. 00m/s against a bumper. lt recoi/s straight back at 2.40 m/s. The collision last 0.0150 s. a) What percentage of its original speed did it have? {/2) b) Determine the average force exerted by the bumper: {/3} c) How much kinetic energy is lost during the collision ? {/3}