Chapter 11, Problem 35P

1- Determine equilibrium the angle 9 for and investigate the stability of the mechanism in this position. The spring has a stiffness of k = 1.5 kN/m and is unstretched when 8 = 90°. The block A has a mass of 40 kg as shown in Fig.1. Neglect the mass of the links. quin 450 mm

1. The cord AB has a length of 5 m and is attached to the end B of the spring having a stiffness k = 10 N/m. The other end of the spring is attached to a roller C so that the spring remains horizontal as it stretches. If a 10 N weight is suspended from B, determine the necessary un-stretched length of the spring, so that = 40° for equilibrium. 5 m 5 m 5 m- www k = 10 N/m

The uniform steel beam of mass m = 19.6 kg and length I= 780 mm is suspended by the two cables at A and B. If the cable at B suddenly breaks, determine the tension Tin the cable at A immediately after the break occurs. Treat the beam as a slender rod. Assume e = 56°. Answer: T = N

The 9.2-kg uniform rod is pinned at end A. If it is also subjected to a couple moment of 50 N⋅m. The spring is unstretched when θ = 0, and has a stiffness of k = 60 N/m. A) Determine the smallest angle θ for equilibrium. θ= ?

Q4 / Determine the unstretched length (Lo) of spring Ac if a force P= 400 N causes the Ø=60° for equilibrium cord AB is 0.6m long . Take K=850 N/m. As shown in fig (4)? 0.6 m 0.6 m www

The spring attached to the sliding collar is capable of carrying tension and compression. The spring has a stiffness k = 1.5 lb/in., and its free length is 1.5L. If the System is known to be in equilibrium in the position =30, determine the weight W of the slider.

The 1200-lb homogeneous block is placed on rollers and pushed up the 10 incline at constant speed. Determine the force P and the roller reactions at A and B.

The cable of mass 1.8 kg/m is attached to a rigid support at A and passes over a smooth pulley at B. If the mass M = 40 kg is attached to the free end of the cable, find the two values of H for which the cable will be in equilibrium. (Note: The smaller value of H represents stable equilibrium.)

Based on Problem 5-87 from the textbook. Both pulleys are fixed to the shaft and as the shaft turns with constant angular velocity, the power of pulley A is tramsitted to pulley B. Determine the horizontal tension T in the belt on pulley B and the x, y, z components of reaciotn at the journal bearing C and thrust bearing D. The bearings are in proper alignment and exrt only force reactions on the shaft. F₁ = 70 N F2=80 N Unique Values for F 300 mm F3 = 40 N 8= 44 44° 250 mm 200 mm F₁ F2 80 mm A 150 mm B