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October 22, 2014

Homework Help: Physics

Posted by James on Saturday, July 28, 2012 at 12:18pm.

3. A projectile is launched at 10.0 m/s in a direction 45.0 degrees above the horizon. It hits the ground 10.0 m below its initial position. What is its speed just before hitting the ground? Ignore air resistance.

The answer is supposed to be 17.2 m/s.

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