Example: The uniform 10-kg ladder in Fig. a rests against the smooth wall at B, and the end A rests on the rough horizontal plane for which the coefficient of static friction is µs = 0.3. Determine the angle of inclination 0 of the ladder and the normal reaction at B if the ladder is on the verge of slipping.

Example: The uniform 10-kg ladder in Fig. a rests against the smooth wall at B, and the end A rests on the rough horizontal plane for which the coefficient of static friction is µs = 0.3. Determine the angle of inclination 0 of the ladder and the normal reaction at B if the ladder is on the verge of slipping.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The 50-mm-diameter solid shaft is subjected to the distributed and concentrated torsional loadings shown. Draw the torque diagram. Calculate the absolute maximum and minimum shear stresses on the outer surface of the shaft and specify their locations, measured from the fixed end A. 1400 N·m 3000Nm/m B 1.2m 1.8m
1. A platform supporting a load hangs from point B. Ignore weights of the rod AB, the strut BC, and the platform. Rod AB is a circular steel rod with a diameter of 20mm. If the load on the platform weighs 72KN, find (a) the average stress in AB and (b) the change in length of AB. 2.4 m B 1.8 m
A simply supported beam column of 4 cm × 6 cm cross-section, 1.5 m long is subjected to an axial load of 8 kN in addition to a transverse concentrated load of 15 kN at a distance of 50 cm from one end. Determine the maximum deflection and the maximum stress in the column. Take E = 200 GPa
A force of 521 kN is applied at joint B to a system of two-pinned joined bars shown in the figure. Determine the required cross-sectional area of the bar BC if the allowable stresses are 175 MPa in tension and 74 MPa in compression. 521 kN B 1.5 mt 1.5 m 3.0 m 3.0 m
3. In the figure shown: a) Draw the Shear and Moment Diagram, and determine the maximum moment. b) Determine the Maximum Tensile and Maximum Compressive Flexural Stress developed. P1 27 kN P2 11 kN A 225 mm P2 3m 3m W
Question 1 A beam is undergoing bending deformation, whose cross-section is shown in Figure Q1. a) Determine the cross-sectional properties lxx, lyy and Iy. b) Determine the direct (bending) stress distribution in the section beam, produced by a positive bending moment, M,. The cross-section is anti-symmetric with centroid at the mid-point of the vertical web. No moment is applied about the y-axis, i.e. M, = 0. 2 2 M. 2 h 2 Figure Q1
The 12 kN crate is being pulled by the force P as shown in the figure. The force P makes an angle of e with the horizontal. a) Find the smallest possible force P to cause the crate to slide. b) Determine the angle e. c) Determine the horizontal frictional force acting at the bottom of the crate, W=12KN Note : The total surface R I Pmin - M= 0.20
The 60-mm-diameter solid shaft is subjected to the distributed and concentrated torsional loadings shown. Determine the absolute maximum and minimum shear stresses on the shaft’s surface and specifies their locations, measured from the free end.
). A circular bar of 2 m length has a diameter 100 mm (E=200 Gpa, v=0.32, a = 11.7µ/c°). The bar's left end is built into a rigid wall and a gap of 0.5 mm exists between right wall and right end of the bar prior to an increase in th temperature. The temperature of the bar is increased uniformly by 80 c°. Determine the average axial stress and change in the diameter of the bar 15
Problem # 1: A hollow shaft has an outside diameter 60 mm and a wall thickness of 1.25 mm. The maximum shear stress in the shaft must be limited to 150 MPa. Use G = 43 000 MPa. Determine: (a) the maximum power that can be transmitted by the shaft if the rotation speed must be limited to 20 Hz. (b) the magnitude of the angle of twist in a 700-mm length of the shaft when 30 kW is being transmitted at 8 rpm.
Two smooth cylinders are placed in the position shown. Cylinder A 1,000N and has a radius of 10cm while cylinder B has a radius of 8cm and weighs 750N. Cylinder A is connected by a 35cm string to the smooth wall C. What is the tensile stress in MPa, developed in the string if the diameter of the string is 10mm and angle beta is 25°? Bº ...