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tankster tankster
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Posts: 851
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7 years ago
An object hits a wall and bounces back with half of its original speed.  What is the ratio of the final kinetic energy to the initial kinetic energy?
A) 1/2
B) 1/4
C) 2
D) 4
E) 8
Textbook 
Physics

Physics


Edition: 4th
Author:
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Answer verified by a subject expert
longhairlonghair
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Posts: 868
7 years ago
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tankster Author
wrote...

7 years ago
Thanks
wrote...

Yesterday
This helped my grade so much Perfect
wrote...

2 hours ago
Good timing, thanks!
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