Question

if the velocity of a body increases three times.how does its kinetic energy change?​

Answer 1

Answer:

K.E= 9/2 mv^2

Explanation:

as the velocity of the body increases by 3 times....Also, K E = 1/2mv^2

=1/2m(3v)^2

=1/2m(9v^2)

=9/2mv^2

Answer 2

Answer:it increases by 9 times

Explanation:

K E = 1/2 mv^2

K E ' = 1/2 m (3v)^2

= 1/2 m 9 v^2 = 9 KE