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A body rolling down a hill has:
A. K.E. only
B. P.E. only
C. Neither K.E. nor P.E.
D. Both K.E. and P.E.

Answer
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Hint: When a body rolls down a hill it has two types of motion. it has a translation motion as well as it has a rotational motion when a body moves it has a kinetic energy so you can observe which type of energy has a rolling body.

Complete step by step answer:
Let’s take an example to understand this question: we take a sphere rolling down from a hill or an inclined plane of height h. When it rolls down at that time it has two types of motion one is translation motion.

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A body rotating about the centre of mass with an angular velocity ω as well as the body has a translation motion with a velocity v means this body has two velocities it means it also has a kinetic energy.
And as we know when a body situated at h height from ground it has a potential energy due to gravitation of earth. This is equal to mgh
So it is clear that when a body rolls down from a hill it has both types of energy kinetic energy as well as potential energy.
When a ball is rolling from the hilltop, the potential energy will decrease and kinetic energy will increase until it reaches the ground.

So, the correct answer is “Option D”.

Note:
Some time student get confused which type of kinetic energy has a rolling body as it is clear when a body roll down is move with a translation velocity v as well as an angular velocity ω so it has two types of kinetic energy one is translational kinetic energy and rotational kinetic energy
Total kinetic energy = translational kinetic energy + rotational kinetic energy
K.E=12mv2+12Iω2 Where I Moment of inertia of body
v Translational velocity or velocity of centre of mass
ωAngular velocity of body