The object shown in the figure below consists of a thin rod of length e = 23.4 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 object is free topivot about a frictionless axle through 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)?(b) What is the angular speed (in rad/s) of the rod and ball?rad/s(c) What is the linear speed (in m/s) of the center of mass of the ball?m/s(d) How does it compare with the speed had the ball fallen freely through the same distance of 28.4 cm? (Express your answer as a percentage.)isswing-Select---%.Vfall by

Answered: Image /qna-images/answer/07ec7825-853f-409b-9d94-e4f0d4579afe.jpg

The object shown in the figure below consists of a thin rod of length e = 23.4 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 object is free to pivot about a frictionless axle through the bottom of the rod. The object is initially vertical and at rest when it starts to rotate clockwise. (a) After the combination rotates through 90 degrees, what is its rotational kinetic energy (in J)? (b) What is the angular speed (in rad/s) of the rod and ball? rad/s (c) What the linear speed (in m/s) of the center of mass of the ball? m/s (d) How does it compare the speed had the ball fallen freely through the same distance of 28.4 cm? (Express your answer as a percentage.) Vswing is ---Select--- v Val by %.

The object shown in the figure below consists of a thin rod of length e = 23.4 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 object is free to pivot about a frictionless axle through the bottom of the rod. The object is initially vertical and at rest when it starts to rotate clockwise. (a) After the combination rotates through 90 degrees, what is its rotational kinetic energy (in J)? (b) What is the angular speed (in rad/s) of the rod and ball? rad/s (c) What the linear speed (in m/s) of the center of mass of the ball? m/s (d) How does it compare the speed had the ball fallen freely through the same distance of 28.4 cm? (Express your answer as a percentage.) Vswing is ---Select--- v Val by %.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.80P

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

The object shown in the figure below consists of a thin rod of length e = 23.4 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 object is free to
pivot about a frictionless axle through the bottom of the rod. The object is initially vertical and at rest when it starts to rotate clockwise.
M
m
(a) After the combination rotates through 90 degrees, what is its rotational kinetic energy (in J)?
(b) What is the angular speed (in rad/s) of the rod and ball?
rad/s
(c) What is the linear speed (in m/s) of the center of mass of the ball?
m/s
(d) How does it compare with the speed had the ball fallen freely through the same distance of 28.4 cm? (Express your answer as a percentage.)
is
swing
-Select---
%.
Vfall by

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