Question

Two bodies having equal masses are moving with uniform velocities of 2v and 3v.What is the ratio of their kinetic energies

Answer 1

Answer:

Answer is 4:9.......

Hope it will help u...

Answer 2

Answer:

4:9

Explanation:

Given-

m=M1=M2

v(body 1) = 2v

v(body 2)= 3v

K.E. ratio =?

We know that

K.E.= 1/2mv^2

K.E.(body1)÷K.E.(body2)

=>1/2×M×(2v)^2÷1/2×M×(3v)^2

=> 1/2×M×4v÷1/2×M×9v

= 4:9