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Kinetic energy of a particle is increased by 50 % without change in its mass. Find the percentage change in its momentum.

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a

Approximately 20%.

b

Approximately 22%.

c

Approximately 24%

d

Approximately 26%

answer is B.

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Detailed Solution

p=2Km K'=1.5K p'=2K'm =2(1.5K)mFrom eqs. (i) and (ii), we get p'=1.22 pTherefore, percentage change in momentum is approximately 22%.

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