5 ft7.84 Find the smallest angle B for which the uniform crate can be tipped aboutcorner A. Also compute the corresponding value of Poo o5 ft200 lbP7.85 The belt is placed between two rollers whieh are free to rotate aboutA and B. Determine the smallest coefficient of static friction between the belt andthe rollers for which the device is self-locking; that is, the belt cannot be pulleddown for any value of Pooo oAAs= 0.2Fig. P7.84Belt

Show the free body diagram of the uniform crate as in Figure (1).

Answered: 5 ft 7.84 Find the smallest angle B for…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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: Block B has a mass m and is released from rest when it is on top of cart A, which has a mass of 3kg. Determine the tension in cord CD needed to hold the cart from moving while B slides down A. Neglect friction. =30o
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A simple beam AB supports two concentratedloads P at the positions shown in the figure. A support C at the midpoint of the beam is positioned at dis-tance d below the beam before the loads are applied. Assuming that d 5 10 mm, L 5 6 m, E 5 200 GPa, and 198 10 mm 6 4 I 5 3 , calculate the magni-tude of the loads P so that the beam just touches the support at C.
The boom OAB pivots about point O, while section AB simultaneously extends from within section OA. Determine the velocity and acceleration of the center B of the pulley for the following conditions: θ = 28°, θ˙ = 3 deg/sec, θ¨ = 4 deg/sec2, l = 9 ft, l˙ = 1.8 ft/sec, l¨ = -3.8 ft/sec2. The quantities l˙ and l¨ are the first and second time derivatives, respectively, of the length l of section AB. Express your answers as vectors in the er and eθ directions.
NEED HELP ASAP PLEASE!!! A horizontal shelf AD of length L = 740 mm, width b = 360 mm, and thickness t = 30 mm is supported by brackets at B and C [see part (a) of the figure]. The brackets are adjustable and may be placed in any desired positions between the ends of the shelf. A uniform load of intensity q. which includes the weight of the shelf itself, acts on the shelf [see part (b) of the figure]. A L (a) D L (b) Determine the maximum permissible value of the load if the allowable bending stress in the shelf is Oallow = 7.5 MPa and the position of the supports is adjusted for maximum load-carrying capacity. Round to two decimal places. qmax kN/m
Q1 / Determine the resulting displacement of pin B. Assume: A1 = A2 = 900 mm², E1 = E2 = 100 GPa, al = a2 = 12x10-6 / ° C, AT = 35 ° C, h = 1200 mm, 0 = 60 °
The tripod shown is to support a vertical load W and horizontal load P at point D. The legs of the tripod rest on a level rough surface at points A, B and C. If W=150N, P=50N, a = 0.5m, b =0.75m. c=1.125m, d=1.5m, 19. Determine the force acting on leg AD. Determine the force acting on leg BD.
Blocks B has a mass of 20 kg and block C has a mass of 15 kg. The coefficient of static friction at the contacting surfaces is 0.2. Block A is suspended by arope that passes over a fixed cylinder and is attached to block B. The coefficient of static friction between the rope and the cylinder is 0.25. What is the largest mass block A can have without causing block B to slip the left?
Replace the loading system by an equivalent resultant force and couple moment acting point A.
The 100-mm-diameter pulley shown fits loosely on a 10-mm-diameter shaft for which the coefficient of static friction is Determine the minimum tension T in the belt needed to (a) raise the 100-kg block and (b) lower the block. Assume that no slipping occurs between the belt and pulley and neglect the weight of the pulley Choices: A. TMAX = 1075 N, TMIN = 906 N B. TMAX = 1075 N, TMIN = 690 N
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