Question

if momentum of an object is increased by 10% then it's kinetic energy will be increase by (1)20% (2)21% (3)40% (4)19%

Answer 1

OPTION B IS THE ANSWER

let the initial mass of the of the body be m and its velocity be v
initial momentum of the body=mv
initial KE= mv^2/2
if the momentum increase by 10%
New momentum =mv+10% of mv
therefore
mv+10/100mv
mv+mv/10

11mv/10
m (11v/10)
New v=11v/10
increase in v=v/10

new KE=m(11v/10)^2/2
121/100mv^2/2

increase in KE =21%

Answer 2

yeah sure for your help

: : : : : : : : : : : : : : : : : : : :

----------------- Here is your answer -----------

It's kinetic energy increase by 21 percent

option (B) is your answer


Now your question is how ??????


Don't worry refer to this pic hope you understand this solution

::: : : : : : : : : : : : : : : : : :

hope you satisfied with my answer

please mark as brainlest as if it helps you