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
