Question

A horse and a dog are running with some speed if the weight of horse is 10times than that of dog. Find ratio of kinetic energy

Answer 1

20:10 is the ratio of kinetic energy which is produced

Answer 2

Let the speed of both the animals be v.

Let the mass of the dog be 'm'.

Now, according to the question, mass of the horse = 10 x m = 10m

Kinetic Energy of the dog = 1/2 x m x v^2
Kinetic Energy of the horse = 1/2 x 10m x v^2

Ratio = 1/2 x m x v^2 : 1/2 x 10m x v^2
          = m : 10m
          = 1 : 10

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