You are celebrating finishing Test 3. You take some fireworks to your local ice rink. You light them, slide them across the ice, and watch them explode into pieces. (Please don't actually do this! This is just a physics problem!) Suppose one firework has a mass of mtoml = 0.527 kg. It slides without friction along the ice with an initial velocity of 1'30 2 11.1 m/S f. There is an internal explosion, and the firework breaks into two pieces! The two parts continue to slide along the ice. y They have masses m1 = 0.2325 kg and l m2 = 0.2945 kg. Mass m1 has a speed x '- of v1 = 7.20 m/s at an angle 61 = 25.0 above the positive x axis. Find the velocity of mg. Answer by finding its speed, 122, and the angle it makes with the positive x axis, 62