A pendulum is created by attaching one end of a 78-cm-long
Chapter 10, Problem 10.19(choose chapter or problem)
A pendulum is created by attaching one end of a 78-cm-long string to the ceiling and tying a 150 g steel ball to the other end. The ball is pulled back until the string is 60 from vertical, then released. What is the speed of the ball at its lowest point?
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