1.

A Rocket is moving up with velocity v. if the velocity of the rocket is tripled, what will be the ratio of kinetic energies?​

Answer»

let mass be M

original VELOCITY = V

new velocity = 3V

original KE = 1/2 x M x V^2

New KE = 1/2 x M x(3 V)^2

ratio

= original KE / New KE

= (1/2 x M x V^2)/(1/2 x M x (3V)^2)

= V^2 / 9 V^2

=1/9

Hope it HELPS



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