KE of a body is increased by 44 % . percent increase in momentum is ...... %

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5.Work, Energy, Power and Collision

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$KE$ of a body is increased by $44 \%$. What is the percent increase in the momentum is ...... $\%$

A

$10$

B

$20$

C

$30$

D

$44$

Solution

(b)

$1.44 \,K=\frac{\left(P^1\right)^2}{2 m}$

$P^1=1.2 P$

$\frac{P^1-P}{P} \times 100=\frac{1.2 P-P}{P}=20 \%$

Standard 11

Physics

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