A ball is launched up a semicircular chute in such a way that at the top of the chute, just before it goes into free fall, the ball has a centripetal acceleration of magnitude 2g. 1.)How far from the bottom of the chute does the ball land? Your answer for the distance the ball travels from the end of the chute should contain R. D=__________ can someone help me start this? i really dont know where to start this problem from.