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August 22, 2014

August 22, 2014

Posted by **Peter** on Friday, June 1, 2012 at 10:19pm.

- Physics -
**drwls**, Saturday, June 2, 2012 at 3:29amInitial energy = (M/2)*Vo^2 = 12.80 J

Total energy at 4.7 m and V = 5 m/s:

= (M/2)*5^2 + M*g*4.7 = 1.25 + 4.61 J

Fraction of ball's energy LOST = (12.80-5.86)/12.80

= 0.542

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