College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 41P
The horizontal beam in Figure 10.60 weighs 150 N, and its center of gravity is at its center. First make a free-body diagram of the beam. Then find (a) the tension in the cable and (b) the horizontal and vertical components of the force exerted on the beam at the wall.
Figure 10.60
Problem 41.
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A person who weighs 775 N supports himself on the ball of one foot. The normal force N = 775 N pushes up on the ball of the foot on one side of the ankle joint, while the Achilles tendon pulls up on the foot on the other side of the joint. The center of gravity of the person is located right above the tibia.
What is the tension in the Achilles tendon? If the force acting is upward, enter a positive value and if the force acting is downward, enter a negative value.
The horizontal beam in the figure weighs 150 N, and its center of gravity is at its center. Find (a) the tension in the cable and (b) the horizontal and vertical components of the force exerted on the beam at the wall.
DA man holds a 178-N
ball in his hand, with the arm bone-
22.
Upper
- rlexor muscle
forcarm horizontal (sce the draw-
ing). He can support the ball in
this position because of the flexor
muscle force M, which is applied
perpendicular to the forearm. The
forearm weighs 22.0 N and has a
center of gravity as indicated. Find
(a) the magnitude of M and (b) the
magnitude and direction of the
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Elbow
cg
joint
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-0.330 m-
0.0510 m
Chapter 10 Solutions
College Physics (10th Edition)
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