Answers

2016-03-15T12:59:11+05:30
1) KE = (1/2)mv² 
 if v is doubled, then KE becomes 4 times of initial KE
2) PE = mgh 
 as v is increased, g ↓ and hence PE ↓
3) Momentum=mv
 ∵ v is doubled ∴ Momentum also doubles
0
Grt answer..:)
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