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If maas of body is increased by 10% and its speed is decreased by 10% then the percentage change in magnitude of momentum will be

Asked by adityaahuja099 12th October 2017, 11:33 PM
Answered by Expert
Answer:
Let initial  mass is m and initial speed is v.. 
 
Then initial momentum is m×v.
 
if mass is increased by 10% then modified mass is 1.1×m.
 
if speed is decreased by 10% then modified speed is 0.9×v
 
hence modified momentum is 1.1×m×0.9×v = 0.99×m×v;
 
hence momentum decreases by 1%
Answered by Expert 13th October 2017, 12:21 PM
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