Knowledge Check! 1. (True or False) When we transfer a force to a point not along its line of action, we get an equivalent system composed of a single force only. 2. (True or False) A couple has rotational and translational effects. 3. (True or False) A single force has different moment effects at different points while a couple has the same moment effect at all points. 4. (True or False) When we sum moments, the resultant moment is zero. 5. (True or False) When we determine the magnitude and direction of a couple moment, if the value is negative, the moment would be clockwise.

Knowledge Check! 1. (True or False) When we transfer a force to a point not along its line of action, we get an equivalent system composed of a single force only. 2. (True or False) A couple has rotational and translational effects. 3. (True or False) A single force has different moment effects at different points while a couple has the same moment effect at all points. 4. (True or False) When we sum moments, the resultant moment is zero. 5. (True or False) When we determine the magnitude and direction of a couple moment, if the value is negative, the moment would be clockwise.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 77P: The axis of Earth makes a 23.5 angle with a direction perpendicular to the plane of Earth’s orbit....

See similar textbooks

Similar questions

Problem#2 1. Determine the moment of the 6 kip force about pointA. 2. Determine the moment of the 4 kip force about point A. 3. Determine the moment of both forces about point A. 6k tisa 151 15ft 1.5 ft-
1. Assuming clockwise moments as positive, compute the moment of force F = 850 N and of force P = 652 N about points A, B, C, and D. 1 m A tm D B
I Review I Constants A woman with mass 50 kg is standing on the rim of a large horizontal disk that is rotating at 0.80 rev/s about an axis through its center. The disk has mass 110 kg and radius Part A 4.3 m. Calculate the magnitude of the total angular momentum of the woman-disk system. (Assume that you can treat the woman as a point.) Express your answer with the appropriate units. HẢ ? L = Value Units Submit Request Answer
Part A If F, = {120i – 125j + 85k} lb and F2 = {-220i + 270j + 120k} lb. determine the resultant moment produced by these forces about point O. Express the result as components of a Cartesian vector. (Figure 1) Enter the a, y, and z components of the moment of force separated by commas. vec ? Мо lb- ft Submit Request Answer Provide Feedback Next > Figure < 1 of 1 4 ft 3 ft 5 ft %3D
The rod is then cut and rotates bout the hinge to a vertical position, where it collides with and sticks to a lump of clay of mass 2.4 kg, as shown. a. What is the angular speed of the rod just before it collides with the clay? b. What is the angular speed of the rod-clay system just after the collision?
Replace the 30-kN force acting at point A by a force-couple system at (a) point O and (b) point B. At each point, give the magnitudes of the resultant force and moment. The moment is positive if counterclockwise and negative if clockwise. 30 kN 1. 26 3.6 m 7.5 m B Answers kN, Mo = kN-m (a) Point O: F= (b) Point B: F = kN. Mg = kN-m 26°C Partly sunny pe here to search
3. Compute Mo and the rotation (ccw or cw). Denote ccw using = +, and cw using = -. Look for the figure, which is attached Determine the moment of the force about point O. 100 N 2 m 5 m
2. Find the y-coordinate of point A so that the 361-lb force will have a clockwise moment of 400 ft-lb about O. Also determine the X and Y intercepts of the action line of the force. F#361 ib
1. Find the moment of the 500 N force shown about Point A. Write your answer using 2 significant digits. A 200 mm F= 500 N 30° B 250 mm
1. Find the moment of the 500 N force shown about Point A. Write your answer using 2 significant digits. 200 mm A ☑ B 30° 250 mm F= 500 N
Compute the moment MA of the force F about point A. Y Moment MA 2224.5 2354.3 2149.5 2594.5 1. 2. 3. 4. 60⁰ F = 150 lb 5'-0" 20'-0" X
▼ Part B Determine the moment of inertia about the centroidal z' axis. Express your answer to three significant figures and include the appropriate units. Ir Submit HA Value Dreddo Foodbook Symbols Request Answer Jay www Units ?