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When you use a slingshot to fire a 500 g rock you stretch the rubber band storing potential energy. The initial elastic potential energy of the rubber band is 85 J and the rock leaves the slingshot with a speed of 18 m/s. Find how much energy is lost to heat.
4 years ago

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R_scott
stored energy - K.E. of rock

85 J - [.5 * 0.5 kg * (18 m/s)^2]
4 years ago

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