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September 30, 2014

Homework Help: physics homework

Posted by samantha on Saturday, February 23, 2013 at 8:16pm.

You throw a 20 N rock into the air from ground level and observe that when it is 1 5.0 M high, it is traveling upward at 25.0 m/s. Use the work energy principle to find (a) the rock’s speed just as it left the ground and (b) the maximum height the rock will reach.

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