1.3. The direction of the 75-lbf force may vary, but the angle between the forces is always 50 degrees. Determine the value of a for which the resultant force acting at A is directed horizontally to the left. 1 Free-body Diagram only 240lbf 30° a 75lbf 50° 75lbf

Q: For the force system shown, a fifth force F must be added so that the resultant of the five forces…

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Q: SOLVE THE RESULTANT OF THE GIVEN CONCURRENT FORCES

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Q: force Pheeded Also, determine the proper placement x of the hook for equilibrium. Neglect the weight…

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Q: 15KN 15kN 4 30° 45° 30 PA 25KN F.

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Q: 400 mm -1100 mm- 200 N a 960 mm 400 N

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Q: Calculate the reaction force at joint H and joint A.

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Q: ant of the force system in next fig. Then locate 1000 N.m 80 N 10m 150 N 100 N 10m A

A: Determine the resultant of the force system in next fig. Then locate it with respect to point (A).

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Q: The lower ends of the three steel bars in Figure are at the same level before the applied…

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Q: A= 300 mm2 A 100 mm2 A B 100 kN 150 kN 200 mm 250 kN 150mm 150mm

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Q: A force system is shown consists of Couple C and four forces. If the resultant of this system is a…

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Q: 2. Resolve the 3Olb force into components along the u and v axes. 30 lb 15° \30°

A: To resolve 30lb force into components along u and v axes

System of Forces

A force is an external influence or agent that changes the state of a system. According to Newton's second law, the force applied to a body is proportional to the change in momentum of a body. Hence, whenever a force is applied to a body, its momentum changes. If the body is at rest, under the action of force, its state of rest changes to motion. In other words, the magnitude of the momentum of the body changes from zero to a measurable value. Similarly, if the body possesses some initial velocity, it has some associated momentum, the effect of force can cause the body to halt or come to rest, that is, the momentum reduces to zero.