NEET2016Physics-Rotational Motion
NEET 2016 Physics Rolling Motion MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A disc and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?
A
Both reach at the same time
B
Depends on their masses
C
Disc
D
Sphere
Correct Answer
Option D
Detailed Explanation
The sphere has a smaller moment of inertia relative to its mass, allowing it to accelerate faster and reach the bottom first.
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