Physics, 31.07.2019 02:30, jukesjameson12

Atoy uses a spring to shoot an arrow with a suction cup on the end. they toy shoots a 34.2g arrow and gives it a speed of 5.50m/s. if the efficiency of the to toy is 69.0%, how much elastic potential energy was stored in the spring? show all your work

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Atoy uses a spring to shoot an arrow with a suction cup on the end. they toy shoots a 34.2g arrow an...