A solid disk with radius r = 10cm rolls smoothly from rest from the top of the roof that is 12m long and inclined 30°. Using energy conservation law, calculate a) the velocity of the center of mass of the disk at the edge, b) the angular velocity of the disk at the same moment. The moment of inertia of a solid disk rotated about its center is I=1/2MR?

A solid disk with radius r = 10cm rolls smoothly from rest from the top of the roof that is 12m long and inclined 30°. Using energy conservation law, calculate a) the velocity of the center of mass of the disk at the edge, b) the angular velocity of the disk at the same moment. The moment of inertia of a solid disk rotated about its center is I=1/2MR?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter9: Momentum And Its Conservation

Section: Chapter Questions

Problem 1STP

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A solid disk with radius r= 1Ocm rolls smoothly from rest from the top of the roof that is 12m long and inclined
30°. Using energy conservation law, calculate a) the velocity of the center of mass of the disk at the edge, b) the
angular velocity of the disk at the same moment. The moment of inertia of a solid disk rotated about its center is
I=1/2MR?

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