Question: A boy on a swing is pulled to a position 2.34 m off the ground and released. At the fastest and lowest point of the

A boy on a swing is pulled to a position 2.34 m off the ground and released. At the fastest and lowest point of the swing the boy is 0.50 m off the ground and travelling 3 m/s. The percent efficiency of this swing system is: O A) 50% O B) 10% O C) 70 % O D) 25%

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