Chapter 11, Problem 6P

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.)

The weightless bars AB and CE, together with the 5-lb weight BE, form a parallelogram linkage. The ideal spring attached to D has a free length of 2 in. and a stiffness of 7.5 lb/in. Find the two equilibrium positions that are in the range 0/2, and determine their stability. Neglect the weight of slider F.

Problem #2: If the box has a mass of 10kg, determine the couple moment M needed to maintain equilibrium when 0 = 60° . Neglect the mass of the members. 0.2 m 0.4 m 0.45 m 0.45 m D.

Determine the required force P shown needed to maintain equilibrium of the scissors linkage when θ = 60°. The spring is unstretched when θ = 30°. Neglect the mass of the links.

The uniform 15-m pole has a mass of 165 kg and is supported by its smooth ends against the vertical walls and by the tension T in the vertical cable. Compute the magnitudes of the reactions at A and B.

Q3 - The uniform bar OC of length L and mass (m ) pivots freely about a horizontal axis through O. If the spring of modulus k is unstretched when C is coincident with A, determine the tension T required to hold the bar in the position shown. The diameter of the small pulley at D| is negligible. T D L/2 45° B 30 L/2 mg А wwww

Parvinbhai

The 10 kg chandelier is in equilibrium and is supported by 3 cables attached to the walls. The first cable (F/) is attached to Wall A, the second cable (F2) is attached to Wall B. • Determine the location of the third cable (F3). Which wall is F; attached to? • What is the tension in F, and what direction is F; measured counter-clockwise from the positive x axis? F2 = 60 N Cable 2 46.00 Cable 1 F = 20 N Note the chandelier chain is not the third force you are looking for Chandelier Chain ho Wall A Wall B.

The uniform 18-m pole has a mass of 110 kg and is supported by its smooth ends against the vertical walls and by the tension T in the vertical cable. Compute the magnitudes of the reactions at A and B.