In a museum exhibit, three equal weights are hung with identical wires, as shown in Figure 5.40. Each wire can support a tension of no more than 75.0 N without breaking. Start each of the fol- lowing parts with an appropri- ate free-body diagram. (a) What is the maximum value that W can be without breaking any wires? (b) Under these conditions, what is the tension in each wire? W W W Figure 5.40 Problem 2.

In a museum exhibit, three equal weights are hung with identical wires, as shown in Figure 5.40. Each wire can support a tension of no more than 75.0 N without breaking. Start each of the fol- lowing parts with an appropri- ate free-body diagram. (a) What is the maximum value that W can be without breaking any wires? (b) Under these conditions, what is the tension in each wire? W W W Figure 5.40 Problem 2.

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 47P: (a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her...

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(a) What is the maximum frictional force in the knee joint of a person who supports 66.0 kg of her mass on that knee? (b) During strenuous exercise, it is possible to exert forces to the joints that are easily 10 times greater than the weight being supported. What is the maximum force of friction under such conditions? The frictional forces in joints are relatively small in all circumstances except when the joints deteriorate, such as from injury or arthritis. Increased frictional forces can cause further damage and pam.
A circular disc bears against a frame structure and a wall, as shown inthe figure. All contacts with the disc are frictionless. The frame structurehas pin supports at A and B; there is an internal pin connection at C. If themaximum allowable reaction force at either of the pin supports is 8 kN, what isthe maximum allowable weight of the disk?
The 6-m pole ABC is acted upon by a 460-N force, P, as shown in the figure. The pole is held by a ball-and-socket joint at A and by two cables BD and BE. For a = 3 m, determine the tension in each cable and the reaction at A. (Round the final answers to one decimal place.) 3. 1.5 m P E The tension in cable BD is The tension in cable BE is The reaction at A is - ( y C B 3 m N. N. N)i + 3 m 3 m 1.5 m 3 m X N)j + N)k.
A block of weight w is suspended from a rope tied to two other ropes at point O. One rope ishorizontally attached to a wall and the other is fastened to the ceiling. The angle betweenceiling and the rope is 60°. What are the tensions in each of the ropes? Assume the weights ofthe ropes and the knots are negligible. If the weight of the block is 100 N, what is the tension inthe ceiling rope?
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