A solid cylinder and a hollow cylinder of equal mass and outer diameter start together from the same height on an incline and roll without slipping. Which reaches the bottom first?
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A solid cylinder and a hollow cylinder of equal mass and outer diameter start together from the same height on an incline and roll without slipping. Which reaches the bottom first?

G1 Physics · Accepted Answer

Step 1: Rolling acceleration is g sinθ/(1+I/(mR²)). Step 2: The solid cylinder has inertia factor ½, less than a hollow cylinder (approximately 1). Step 3: It accelerates faster and finishes first. Final answer: D — solid cylinder.