Question

if volume of a body becomes 1/2 times then what kinetic energy becomes​

Answer 1

Answer:

K.E = 1/4 times reduced

Step-by-step explanation:

K.E = 1/2 x m x v²

K.E = 1/2 x m x (v/2)²

so it is reduced by 1/4 times

Hope you understood!

:)

Answer 2

We know that

$ke = 1 \div 2mu {}^{2}$

where

• ke =kinetic erg
• m=mass of body
• u=velocity

$i.e.ke \: \alpha \: mass$

mass

$= vol \times \rho$

where

$vol = volume \: of \: body \\ \rho = density \: of \: body$

if volume decreasea to 1/2

$ke \alpha 1 \div 2vol \times \rho$

thus ke becomes =ke/2