A 80- kg child sits in a swing suspended with 2.6- m-long ropes. The swing is held aside so that the ropes make an angle of 46 o with the vertical. Use conservation of energy to determine the speed the child will have at the bottom of the arc when she is let go.
Physics PLEASE HELP - drwls, Wednesday, March 21, 2012 at 11:32pm
Already answered. See below