COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Question
Chapter 8, Problem 119QAP
To determine
(a)
Relationship between two hung masses and whether this is the only combination that maintains leg at static position
To determine
(b)
Relationship between two hung masses when the m1 is hanging from center of mass of the leg
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Check out a sample textbook solutionChapter 8 Solutions
COLLEGE PHYSICS
Ch. 8 - Prob. 1QAPCh. 8 - Prob. 2QAPCh. 8 - Prob. 3QAPCh. 8 - Prob. 4QAPCh. 8 - Prob. 5QAPCh. 8 - Prob. 6QAPCh. 8 - Prob. 7QAPCh. 8 - Prob. 8QAPCh. 8 - Prob. 9QAPCh. 8 - Prob. 10QAP
Ch. 8 - Prob. 11QAPCh. 8 - Prob. 12QAPCh. 8 - Prob. 13QAPCh. 8 - Prob. 14QAPCh. 8 - Prob. 15QAPCh. 8 - Prob. 16QAPCh. 8 - Prob. 17QAPCh. 8 - Prob. 18QAPCh. 8 - Prob. 19QAPCh. 8 - Prob. 20QAPCh. 8 - Prob. 21QAPCh. 8 - Prob. 22QAPCh. 8 - Prob. 23QAPCh. 8 - Prob. 24QAPCh. 8 - Prob. 25QAPCh. 8 - Prob. 26QAPCh. 8 - Prob. 27QAPCh. 8 - Prob. 28QAPCh. 8 - Prob. 29QAPCh. 8 - Prob. 30QAPCh. 8 - Prob. 31QAPCh. 8 - Prob. 32QAPCh. 8 - Prob. 33QAPCh. 8 - Prob. 34QAPCh. 8 - Prob. 35QAPCh. 8 - Prob. 36QAPCh. 8 - Prob. 37QAPCh. 8 - Prob. 38QAPCh. 8 - Prob. 39QAPCh. 8 - Prob. 40QAPCh. 8 - Prob. 41QAPCh. 8 - Prob. 42QAPCh. 8 - Prob. 43QAPCh. 8 - Prob. 44QAPCh. 8 - Prob. 45QAPCh. 8 - Prob. 46QAPCh. 8 - Prob. 47QAPCh. 8 - Prob. 48QAPCh. 8 - Prob. 49QAPCh. 8 - Prob. 50QAPCh. 8 - Prob. 51QAPCh. 8 - Prob. 52QAPCh. 8 - Prob. 53QAPCh. 8 - Prob. 54QAPCh. 8 - Prob. 55QAPCh. 8 - Prob. 56QAPCh. 8 - Prob. 57QAPCh. 8 - Prob. 58QAPCh. 8 - Prob. 59QAPCh. 8 - Prob. 60QAPCh. 8 - Prob. 61QAPCh. 8 - Prob. 62QAPCh. 8 - Prob. 63QAPCh. 8 - Prob. 64QAPCh. 8 - Prob. 65QAPCh. 8 - Prob. 66QAPCh. 8 - Prob. 67QAPCh. 8 - Prob. 68QAPCh. 8 - Prob. 69QAPCh. 8 - Prob. 70QAPCh. 8 - Prob. 71QAPCh. 8 - Prob. 72QAPCh. 8 - Prob. 73QAPCh. 8 - Prob. 74QAPCh. 8 - Prob. 75QAPCh. 8 - Prob. 76QAPCh. 8 - Prob. 77QAPCh. 8 - Prob. 78QAPCh. 8 - Prob. 79QAPCh. 8 - Prob. 80QAPCh. 8 - Prob. 81QAPCh. 8 - Prob. 82QAPCh. 8 - Prob. 83QAPCh. 8 - Prob. 84QAPCh. 8 - Prob. 85QAPCh. 8 - Prob. 86QAPCh. 8 - Prob. 87QAPCh. 8 - Prob. 88QAPCh. 8 - Prob. 89QAPCh. 8 - Prob. 90QAPCh. 8 - Prob. 91QAPCh. 8 - Prob. 92QAPCh. 8 - Prob. 93QAPCh. 8 - Prob. 94QAPCh. 8 - Prob. 95QAPCh. 8 - Prob. 96QAPCh. 8 - Prob. 97QAPCh. 8 - Prob. 98QAPCh. 8 - Prob. 99QAPCh. 8 - Prob. 100QAPCh. 8 - Prob. 101QAPCh. 8 - Prob. 102QAPCh. 8 - Prob. 103QAPCh. 8 - Prob. 104QAPCh. 8 - Prob. 105QAPCh. 8 - Prob. 106QAPCh. 8 - Prob. 107QAPCh. 8 - Prob. 108QAPCh. 8 - Prob. 109QAPCh. 8 - Prob. 110QAPCh. 8 - Prob. 111QAPCh. 8 - Prob. 112QAPCh. 8 - Prob. 113QAPCh. 8 - Prob. 114QAPCh. 8 - Prob. 115QAPCh. 8 - Prob. 116QAPCh. 8 - Prob. 117QAPCh. 8 - Prob. 118QAPCh. 8 - Prob. 119QAPCh. 8 - Prob. 120QAPCh. 8 - Prob. 121QAPCh. 8 - Prob. 122QAPCh. 8 - Prob. 123QAPCh. 8 - Prob. 124QAPCh. 8 - Prob. 125QAPCh. 8 - Prob. 126QAPCh. 8 - Prob. 127QAP
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- BIO When a gymnast performing on the rings executes the iron cross, he maintains the position at rest shown in Figure P10.85a. In this maneuver, the gymnasts feet (not shown) are off the floor. The primary muscles involved in supporting this position are the latissimus dorsi (lats) and the pectoralis major (pecs). One of the rings exerts an upward fore Fh on a hand as shown in Figure P10.85b. The force Fs is exerted by the shoulder joint on the arm. The latissimus dorsi and pectoralis major muscles exert a total force Fm on the arm. (a) Using the information in the figure, find the magnitude of the force Fm. (b) Suppose an athlete in training cannot perform the iron cross but can hold a position similar to the figure in which the arms make a 45 angle with the horizontal rather than being horizontal. Why is this position easier for the athlete? Figure P10.85arrow_forwardTorque and the Two Conditions for Equilibrium 17. The arm in Figure P8.17 weighs 41.5 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force Ft, in the deltoid muscle and the force Fs exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. Figure P8.17arrow_forwardMany of the elements in horizontal-bar exercises can be modeled by representing the gymnast by four segments consisting of arms, torso (including the head), thighs, and lower legs, as shown in Figure P8.15a. Inertial parameters for a particular gymnast are as follows: Note that in Figure P8.l5a rcg is the distance to the center of gravity measured from the joint closest to the bar and the masses for the arms, thighs, and legs include both appendages. I is the moment of inertia of each segment about its center of gravity. Determine the distance from the bar to the center of gravity of the gymnast for the two positions shown in Figures P8.15b and P8.15c. Figure P8.15arrow_forward
- In an emergency situation, a person with a broken forearm ties a strap from his hand to clip on his shoulder as in Figure P8.92. His 1.60-kg forearm remains in a horizontal position and the strap makes an angle of = 50.0 with the horizontal. Assume the forearm is uniform, has a length of = 0.320 m, .assume the biceps muscle is relaxed, and ignore the mass and length of the hand. Find (a) the tension in the snap and (b) the components of the reaction force exerted by the humerus on the forearm. Figure P8.92arrow_forwardBIO The arm in Figure P10.35 weighs 41.5 N. The gravitational force on the arm acts through point A. Determine the magnitudes of the tension force F1 in the deltoid muscle and the force Fs exerted by the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown. Figure P10.35arrow_forwardIn analyzing the equilibrium of a flat, rigid object, you are about to choose an axis about which you will calculate torques. Which of the following describes the choice you should make? (a) The axis should pass through the objects center of mass. (b) The axis should pass through one end of the object. (c) The axis should be either the x axis or the y axis. (d) The axis should pass through any point within the object. (e) Any axis within or outside the object can be chosen.arrow_forward
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