Calculate the net torque (magnitude and direction) on the beam in the figure below about the following axes. A horizontal beam of length 4.0 m is shown. The left end of the beam is labeled O and the center of the beam is labeled C. Three vectors act on the beam. A vector of magnitude 30 N originates from the left end of the beam and points down and to the left making a 45° angle with the horizontal. A vector of magnitude 25 N originates from the center of the beam at a distance of 2.0 m from the left end and points up and to the right making an angle of 30° with the vertical. A vector of magnitude 10 N originates from the right end of the beam and points down and to the right making an angle of 20° from the horizontal. (a) an axis through O perpendicular to the page magnitude N · m direction ---Select--- clockwise counterclockwise (b) an axis through C perpendicular to the page magnitude N · m direction ---Select--- counterclockwise clockwise
Calculate the net torque (magnitude and direction) on the beam in the figure below about the following axes. A horizontal beam of length 4.0 m is shown. The left end of the beam is labeled O and the center of the beam is labeled C. Three vectors act on the beam. A vector of magnitude 30 N originates from the left end of the beam and points down and to the left making a 45° angle with the horizontal. A vector of magnitude 25 N originates from the center of the beam at a distance of 2.0 m from the left end and points up and to the right making an angle of 30° with the vertical. A vector of magnitude 10 N originates from the right end of the beam and points down and to the right making an angle of 20° from the horizontal. (a) an axis through O perpendicular to the page magnitude N · m direction ---Select--- clockwise counterclockwise (b) an axis through C perpendicular to the page magnitude N · m direction ---Select--- counterclockwise clockwise
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 58P
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Calculate the net torque (magnitude and direction) on the beam in the figure below about the following axes.
A horizontal beam of length 4.0 m is shown. The left end of the beam is labeled O and the center of the beam is labeled C. Three vectors act on the beam.
- A vector of magnitude 30 N originates from the left end of the beam and points down and to the left making a 45° angle with the horizontal.
- A vector of magnitude 25 N originates from the center of the beam at a distance of 2.0 m from the left end and points up and to the right making an angle of 30° with the vertical.
- A vector of magnitude 10 N originates from the right end of the beam and points down and to the right making an angle of 20° from the horizontal.
(a) an axis through O perpendicular to the page
(b) an axis through C perpendicular to the page
magnitude | N · m |
direction | ---Select--- clockwise counterclockwise |
(b) an axis through C perpendicular to the page
magnitude | N · m |
direction | ---Select--- counterclockwise clockwise |
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