The assembly shown in the figure below consists of a thin rod of length = 23.9 cm and mass m = 1.20 kg with a solid ball of diameter d = 10.0 cm and mass M = 2.00 kg attached to its top. The assembly is free to pivot about a frictionless axle through the bottom of the rod. The assembly is initially vertical and at rest when it starts to rotate clockwise. d m J M Ⓡ (a) After the combination rotates through 90 degrees, what is its rotational kinetic energy (in J)? 7.07 (b) What is the angular speed (in rad/s) of the rod and ball? 8.63 rad/s (c) What is the linear speed (in m/s) of the center of mass of the ball? 2.49 ✔ m/s (d) How does it compare with the speed had the ball fallen freely through the same distance of 28.9 cm? (Express your answer as a percentage of fall.) swing e is greater than ✓ ✓fall by 4.78 X What constant acceleration kinematics formula relates the final speed of a falling object to the acceleration and distance fallen? By what percentage of Vfall does v swing differ from Vall? %.

The assembly shown in the figure below consists of a thin rod of length = 23.9 cm and mass m = 1.20 kg with a solid ball of diameter d = 10.0 cm and mass M = 2.00 kg attached to its top. The assembly is free to pivot about a frictionless axle through the bottom of the rod. The assembly is initially vertical and at rest when it starts to rotate clockwise. d m J M Ⓡ (a) After the combination rotates through 90 degrees, what is its rotational kinetic energy (in J)? 7.07 (b) What is the angular speed (in rad/s) of the rod and ball? 8.63 rad/s (c) What is the linear speed (in m/s) of the center of mass of the ball? 2.49 ✔ m/s (d) How does it compare with the speed had the ball fallen freely through the same distance of 28.9 cm? (Express your answer as a percentage of fall.) swing e is greater than ✓ ✓fall by 4.78 X What constant acceleration kinematics formula relates the final speed of a falling object to the acceleration and distance fallen? By what percentage of Vfall does v swing differ from Vall? %.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 15P: A digital audio compact disc carries data, each bit of which occupies 0.6 m along a continuous...

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