Question

Two bodies of ratio of their masses 2:3 and ratio of their velocities 3:4.
The ratio of their kinetic energies is
1 point
6:12
9:16
3:8
4.9

Answer 1

Answer:

tap the picture to get the solution

Explanation:

correct answer is

3:8

Answer 2

Answer:

3:8

Explanation:

kinetic energy =

$\frac{1}{2 } m {v}^{2}$

ratio of kinetic energies = 1/2m m1 v1 square : 1/2m2 v2 square

1/2 gets cancelled,

= m1 v1 square / m2 v2 square

can be rewritten as m1/m2 * (v1/v2) square

given m1/m2 = 2/3 ,v1/v2 = 3/4

= 2/3 * 9/16

= 3/8

= 3:8

hope its helpful....

mark as brainliest if u find it helpful...

sathvik✍️