Chapter 4, Problem 115P

Replace the force system acting on the beam by an equivalent force and couple moment at point A. foroo A 2 m 36 kN 3 m d along the positive u 20 KN Co 2 m B 94 kN.m

Replace the loading system by an equivlanet reusltant force and couple moment acting at point A.

1. the tow truck's front wheels will belifted off the ground if the moment of the load W about the rear axle exceeds the moment of 3000N weight of the truck. Determine the largest w that may be safely applied   2. the flat plate shown in the figure is acted on by the three couples. replace the three couples with two forces, one acting along the line OP

Replace the loading system by an equivalent resultant force and couple moment acting at point A. 100 lb 1 ft • S0 Ib 3 ft- 3ft 150 lb

Find the moment about point A resulting from the force of the knee on the helmet, as shown. Also, find the force F at the base of the neck needed to resist this moment.

Calculate the moment Mg of the 620-N force about the bolt at B. Simplify your work by first replacing the force by its equivalent force- couple system at A. The moment is positive if counterclockwise, negative if clockwise. Assume F = 620 N, r = 240 mm, h = 625 mm, 0 = 31% = 38° Answer: MB = i 0 F N.m

Replace the force at A by an equivalent force and couple moment at point 0. 6 m 4 m 20 N

Replace the force and couple moment system acting on the beam in the figure by an equivalent resultant force, and find where its line of action intersects the beam, mesured from point O

Replace the loading by an equivalent resultant force and couple moment at point B.