Question

A horse and a dog are running with teh same speed. If the weight of the horse is ten times that of the dog. what is the ratio of their kinetic energies

Answer 1

since kinetic energy is directly proportional to the mass of the object and also to the square of the velocity.
Here velocity is same for both then kinetic energy only depends upon the mass of the object.
hence,
K1:K2= 10:1