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April 20, 2014

Homework Help: College Physics

Posted by Emily Shinavier on Sunday, September 30, 2012 at 8:43pm.

The ball launcher in a pinball machine has a spring that has a force constant of 1.50 N/cm.


The surface on which the ball moves is inclined a = 14.5o with respect to the horizontal. If the spring is initially compressed 4.70 cm, find the launching speed of a 0.113 kg ball when the plunger is released. Friction and the mass of the plunger are negligible.

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