Answers

2014-11-27T21:20:15+05:30
100*0.1=10 
so k.e increses by [(0.1+1)^2-1]100 
=[1.21-1]100 
=0.21*100 
=21%
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2014-11-29T05:44:26+05:30

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P = m v
KE = 1/2 m v² = p²/2m

p' = p + 10% p = 1.10 p

KE' = p' ² /2m  = 1.10² p² /2 m = 1.21 KE
Hence it increases by (1.21- 1.00)*100 = 21%

that number you have mention is not correct.

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