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a 2.0 kg water balloon is propelled by a water balloon launcher. You pull back on...

a 2.0 kg water balloon is propelled by a water balloon launcher. You pull back on the water balloon launcher at a distance of 0.48 meters in order to shoot the balloon. The spring constant of the elastic in the launcher is 2150 N/m. A. calculate how much work do you perform by stretching the launcher?

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