Question

. Two objects have equal masses. If their velocities have
ratio 2:3, find the ratio of their kinetic energies.
(Answer. 4:9)​

Answer 1

Answer: formula of energy 1/2×mv²

Explanation: from question m1=m2 and from formula 1/2 = 1/2

so for ratio 1/2×m1×v1² : 1/2×m2×v2² become v1²:v2²

For v1 = 2 , v2 = 3 so v1² = 4 , v2² = 9