NOTES ASK YOUR TEACHER PRACTICE ANOTHER The figure below shows a horizontal bar, of length 4.6 m, with forces acting on it. A 30 N force acts at its left end, point 0, in a direction down and to the left, 45° below horizontal. A 25 N force acts at its center, point C, in a direction up and to the right, 30° to the right of vertical. A 10 N force acts at the right end, in a direction down and to the right, 20° below horizontal. 25 N 30% I 20° 45° 2.3 m 10 N 4.6 m– 30 N (a) What is the net torque (in N • m) on the bar about an axis through O perpendicular to the page? magnitude N• m direction counterclockwise (b) (b) What is the net torque (in N · m) on the bar about an axis through C perpendicular to the page? magnitude N. m direction counterclockwise

NOTES ASK YOUR TEACHER PRACTICE ANOTHER The figure below shows a horizontal bar, of length 4.6 m, with forces acting on it. A 30 N force acts at its left end, point 0, in a direction down and to the left, 45° below horizontal. A 25 N force acts at its center, point C, in a direction up and to the right, 30° to the right of vertical. A 10 N force acts at the right end, in a direction down and to the right, 20° below horizontal. 25 N 30% I 20° 45° 2.3 m 10 N 4.6 m– 30 N (a) What is the net torque (in N • m) on the bar about an axis through O perpendicular to the page? magnitude N• m direction counterclockwise (b) (b) What is the net torque (in N · m) on the bar about an axis through C perpendicular to the page? magnitude N. m direction counterclockwise

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 2.9CYU: Check Your Understanding Suppose that Balto in Example 2.10 leaves the game to attend to more...

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

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