Q1. A 0.440-kg blue bead slides on a frictionless, curved wire, starting from rest at point, where h = 1.40 m. At point, the blue bead collides elastically with a 0.625-kg green bead at rest. Find out the maximum height the green bead rises as it moves up the wire.
Q2. A 78-kg base runner begins his slide into second base when he is moving at a speed of 4.2 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches base.