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EXERCISE 20
EXERCISE 20 A mini-asteroid with mass 15 kg moves eastward at 15 m/sec. A second asteroid with mass 15 kg moves westward at 30 m/sec. They collide. (a) If they stick together, what is the velocity (speed and direction) of the new, larger asteroid? (b) If they bounce off each other and do not stick, and one of the asteroids is now moving westward at 25 m/sec, what is the velocity of the other? |