Two identical objects move with speeds of 5.0 m s and 25.0 m s. what is the ratio of their kinetic energies?

The formula for kinetic energy is KE = 0.5mv^2

Where m is the mass

And v is the velocity

Since the two object are identical so their mass are equal

KE1/ KE2 = 0.5m(v1)^2/ 0.5m(v2)^2

KE1/ KE2 = (v1)^2/ (v2)^2

KE1/ KE2 = (5)^2/ (25)^2

KE1/ KE2 = 1/25

KE1:KE2 = 1:25

this a false

explanation:

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.