Mass of a body is increased by 7 times and its velocity is reduced by 5 times. Find the ratio of the new to the original momentum.
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Answer:
M(original) = mv
New mass = 7m and new velocity = v/5
therefore M(new) = 7m*v/5 = 7/5 mv
ratio of M (new) : M (original) = 7/5mv : mv
= 7/5 : 1
= 7 : 5
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