6. An ice-skater A has a mass of 90 kg and is skating with a velocity of 4.5 m/s when he collides head-on with skater B, who has a mass of 100 kg and is traveling in the opposite direction at -5 m/s. After the collision, skater B comes to a rest. What happens to skater A and why? 7. For catching practice, a pitcher throws the baseball at an initial of 30 m/s and the horizontal velocity vx=20m/s. Find the angle 0 (with respect to the horizontal) of the ball at release? edmiun to lisa Lyor eluqmoo Bonouse ci S hi believeweaw etning owt eall newled conslelo anti it b Seallibolov calany bus Isloston art plugmoo 8. The same pitcher throws the baseball a second time with a horizontal velocity Vx=20m/s and vertical velocity vy=18m/s. What is the angle of release and the magnitude of velocity at release