Explanation

To find which body has the largest kinetic energy, we use the formula for kinetic energy:

Mass = 2M, Speed = 3V

$$$$K.E.d=12⋅2M⋅(3V)2

$$$$
=12⋅2M⋅9V2

$$text{K.E.}_d = frac{1}{2} cdot 2M cdot (3V)^2 = frac{1}{2} cdot 2M cdot 9V^2 = 9MV^2$$K.E.d​=1​/2⋅2M⋅(3V)^2=1/2​⋅2M⋅9V^2=9MV^2