In starting a game of pinball, the 58.1 g ball rests on a spring, of spring constant k = 18.4 N/m, that has been compressed by 0.0800 m. If the spring is released, how far up the pinball table (which is inclined at 23.0°) does the ball go before rolling back down again? You can assume it doesn't hit any obstacles on the way up.
First, find the vertical height covered by the pinball after the spring is released.
When the spring is released the elastic potential energy of the spring is converted into potential energy of the pinball.
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Consider the figure
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