Solid disk rolling down incline · PhysicsBowl 2025 #11

Physics · mechanics

Problem

A solid disk of mass 5 kg and radius of 0.4 m is released from rest and rolls without slipping down a 5 m long incline that makes a 30° angle from the horizontal. What will be the linear velocity of the disk's center of mass at the bottom of the incline. a. 2.2 ms\frac{m}{s} b. 4.2 ms\frac{m}{s} c. 5.7 ms\frac{m}{s} d. 7.0 ms\frac{m}{s} e. 8.3 ms\frac{m}{s}

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