Gujarati
5.Work, Energy, Power and Collision
easy

If the kinetic energy of a body increases by $0.1\%$, the percent increase of its momentum will be .............. $\%$

A

$0.05$

B

$0.1$

C

$1$

D

$10$

Solution

(a)$P = \sqrt {2\,mE} $ $P \propto \sqrt E $
 

Percentage increase in $P = \frac{1}{2}$(percentage increase in $E$)
= $\frac{1}{2}(0.1\% ) = 0.05\% $

Standard 11
Physics

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