Chapter 7, Problem 119P

A 50-m steel surveying tape has a mass of 1.6 kg. If the tape is stretched between two points at the same elevation and pulled until the tension at each end is 60 N, determine the horizontal distance between the ends of the tape. Neglect the elongation of the tape due to the tension.

The 200-lb uniform tank is suppended by means of a 6-ft-long cable, which is attached to the side of the tank and passes over the small pully located at O. If the cable can be attached at either points A and B, or C and D, determine which attachment produces the least amount of tension in the cable. What is this tension? a= 2.7 ft b=1.1 ft a b B b a/2

The pipe assembly in is secured on the wall by the two brackets. MOA = 60° lb. ft 4 ft 4 ft 3 ft 30⁰ 3 ft Part A If the flowerpot has a weight of 50 lb, determine the magnitude of the moment produced by the weight about the OA axis. Express your answer in pound-feet to three significant figures. ANSWER: B y

QS:The wrench is subjected to the 200 N force and the force P. If the equivalent of the two forces is a force R at O and a couple M=30 kN.m. Determine the Pand R. 300 m 200 N 160 m

Determine the magnitude of the reactions at A and C (resultant). Neglect the weight of the bar.

Replace the parallel force system acting on the plate by a resultant force and specify its location on the x-z plane. Solution: R = -10 kN, z = 1.4 m, x = 1 m %3D 0.5 m

Show the solution.

The man is holding up the 35-kg ladder ABC by pushing perpendicular to ladder. If the maximum force that the exert is 400N, determine the smallest angle θ at which he can support the ladder.

The diagram shows the distributed loading profile on a vertical surface. Replace the distributed load by a single force and determine its location along the surface with respect to point O. Q4 3 m 7.5 kN/m 3 m 4.5 m 20 kN/m