Question

if the velocity of the body is increased three times kinetic energy will increase​

Answer 1

Kinetic energy is proportional to mass times velocity squared. Momentum can be increased by increasing mass and or velocity so that the product increases three times.

Answer 2

Explanation:

so kinetic energy is directly proportional to v²

so if velocity is tripled kinetic energy will be 9 times intial value

so it will increase by 8 times