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May 27, 2015

Homework Help: Physics

Posted by Lindsay on Saturday, November 3, 2007 at 4:24pm.

A stone thrown horizontally from a height of 7.8 m hits the ground at a distance of 12.0 m. Calculate the speed of the ball as it hits the ground.

I was able to find the initial speed of the ball, which is 9.52 m/s. However, I'm unsure about whether I need to use this number to get the speed as it hits the ground.

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