Answer: the solid cylinder.
- A the solid cylinder
- B the hollow cylinder
- C they arrive together
- D it depends on the mass
Correct answer: A. the solid cylinder
Explanation: The solid cylinder has smaller I/MR², so larger acceleration, and reaches the bottom first.
Torque about axis O equals the force F multiplied by the perpendicular distance r⊥ from the axis to the line of action of the force, producing rotation.
Concept context
Moment of inertia, torque, angular momentum, rolling motion. Very high JEE weightage.
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