Posted by **Jeff** on Friday, January 22, 2010 at 9:02pm.

An athlete throws a basketball through a hoop. The ball leaves his hands at a height of 2.5 m with a speed of 9.0 m/s. Calculate the speed of the ball when it “swishes” through the hoop. The hoop is at a height of 3.0 m and it is 5.0 m along the court from the basketball player.

- science -
**bobpursley**, Friday, January 22, 2010 at 9:06pm
It is pretty easy...

consider energy.

The ball has an initial KE, and initial PE. The ball has a final PE you know, so calculate the final KE.

Intialtotalenergy= final PE+finalKE

- science -
**Anonymous**, Saturday, November 5, 2011 at 8:46pm
I tried the method listed above but it is different from the answer given in the textbook. I hope the textbook is wrong!

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