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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