The object shown in the figure below consists of a thin rod of length l = 23.3 cm and mass m = 1.20 kg with a solid sphereof diameter d = 10.0 cm and mass M = 2.00 kg attached to its top. The object is free to pivot about a frictionless axlethrough the bottom of the rod. The object is initially vertical and at rest when it starts to rotate clockwise.mM(a) After the combination rotates through 90 degrees, what is its rotational kinetic energy (in J)?J(b) What is the angular speed (in rad/s) of the rod and sphere?rad/s(c) What is the linear speed (in m/s) of the center of mass of the sphere?m/s (d) How does it compare with the speed had the sphere fallen freely through the same distance of 28.3 cm? (Expressyour answer as a percentage of Vfall")swing is ---Select--- V*Vfall by%.

Answered: The object shown in the figure below…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter13: Rotation Ii: A Conservation Approach

Section: Chapter Questions

Problem 23PQ

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