Asolid sphere with mass, m, and radius, r, rolls along a level surface without slipping with a linear speed, v. what is the ratio of rotational to linear kinetic energy

Explanation:

given,

mass of solid sphere = M

radius = R

linear speed = v

now,

Linear Kinetic energy

...............(1)

Rotational kinetic energy

moment of inertia of the solid sphere

and v = R ω

............(2)

ration of rotational and Kinetic energy

hence, ratio of rotational to linear kinetic energy is equal to 2/5.

i don't know that i agree with that but what's the question ?