Q. A bowling ball weighing 71.2 is attached to the ceiling by a 3.50 rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured at 4.00 .
Q. A wrecking ball of mass 600kg hangs from acrane by a cable of length 10 m. if this wrecking ball is released from an angle of 35 degrees, what will be its kinetic energy when it swings through the lowest point of the arc?