Question

2 bodies of equal masses are moving with uniform velocities v and 2v. find the ratio of kinetic energy

Answer 1

Explanation:

AS THE BODIES HAVE SAME MASS BUT THE DIFFERENT VELOCITIES....

USING THE FORMULA OF KINETIC ENERGY:

$1 \div 2m {v}^{2}$

LET . VELOCITIES OF ONE BE "V" AND ANOTHER BE "2V"..

THE RATIO ISS.. SINCE MASS IS EQUAL SO TERM OF MASS GET CANCEL AND 1/2 ALSO GETS CANCEL..

THE RATIO IS "1:4"..........