Chapter 4, Problem 41P

Determine the moment at point O due to the application of the 25 N force. FB =18 N Fp =25 N 8 m 10 m 2 m 3 m- - 6 m.

03.find the moment force of the system shown on point A. F-375 Ib F = 500 Ib -8 ft- + 6ft- -St- Group 30 F= 160 lb

A force of F = 20 lb is applied to the bent pipe as shown. Assume h = 5 in., b = 15 in., a = 22°, and ß = 66°. Determine the moment of this force about point O. Give your answer in Ib-in. Enter a positive number if the moment is counter- clockwise or a negative number if the moment is clockwise. b F a

The man pulls on the rope with a force of F = 20 N. Determine the moment of this force about the base of the pole at O. Solve the problem two ways, i.e., by using a position vector from O to A, then O to B. B 1.5 m 3 m F 4 m 10.5 m

Determine the moment of a force F=(0.5i-2.0j+7.0k) kN acting at A(5, -4, 0)m about axis BC where B (6,8,4)m and C (-6, -5,8)m. Also express the result in vector form. What is the prependicular distance between F and the axis BC?

The couple acts on the handles of a steering mechanism. In the position shown, the moment applied by the couple about the z-axis is zero. Determine the distance b. Use F = 200i − 110j − 80k kN.

The device shown is a part of an automobile seat-back-release mechanism. The part is subjected to the 4.0-N force exerted at A and a 380-N·mm restoring moment exerted by a hidden torsional spring. Determine the y-intercept of the line of action of the single equivalent force. Your answer will be positive if the intercept is above O and negative if below O.

The couple acts on the handles of a steering mechanism. In the position shown, the moment applied by the couple about the z-axis is zero. Determine the distance b.Use F = 200i − 110j − 80k kN. Explain every solution.

The small crane is mounted along the side of a pickup bed and facilitates the handling of heavy loads. When the boom elevation angle is q = 40°, the force in the hydraulic cylinder BC is 7 kN, and this force applied at point C is in the direction from B to C (the cylinder is in compression). Determine the moment of this 7 kN force about pivot point O assuming counterclockwise is positive. Express your answer in units of N-m. A 110 mm 785 mm C - 0 B 340 mm 360 mm