Homework Help: math

Posted by leanna on Saturday, February 9, 2013 at 4:36pm.

when a ball is dropped, it bounces back up 4/5 of the height from the height it was dropped.If the ball dropped from a height of 200cm, how high does it go after bouncing twice.

math - EDSEL, Sunday, February 10, 2013 at 1:14am
1st bounce=0.2(4/5)=0.16m
2nd bounce=0.16(4/5)=0.128m or 128cm

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