Problem 1: The load below is being lifted. And at 4 ft, having constant acceleration from its rest with an upward velocity of 3 ft/sec. The gear at A of the rotating motor drives gear B, which is attached to the rotating drum. Determine the : 1. acceleration of point C on the cable in contact with the rotating drum as the load passes this position. 2. angular velocity and angular acceleration of the gear at The gear at A of the rotating motor drives gear B, which is attached to the rotating drum. C 36 48 12 3 ft/sec L. 4'

Problem 1: The load below is being lifted. And at 4 ft, having constant acceleration from its rest with an upward velocity of 3 ft/sec. The gear at A of the rotating motor drives gear B, which is attached to the rotating drum. Determine the : 1. acceleration of point C on the cable in contact with the rotating drum as the load passes this position. 2. angular velocity and angular acceleration of the gear at The gear at A of the rotating motor drives gear B, which is attached to the rotating drum. C 36 48 12 3 ft/sec L. 4'

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 16-ft-long cord is attached to the pin at C and passes over the two pulleys at A and D. The pulley at A is attached to the smooth collar that travels along the vertical rod. When SB 6 ft, the end of the cord at B is pulled downwards with a velocity of 4 ft/s and is given an acceleration of 3 ft/s2. Determine the acceleration of the collar at this instant. 3 ft 3 ft T SB SA B
C). If wheel D rotates with an angular velocity of op=6 rad/s, determine the angular velocity of the follower link BC at the instant shown. The link rotates about the z axis at z = 2 ft. 0.5 ft B 2 ft 1.5 ft 3 ft wp- 6 rad/s 0.25 ft D.
20 kN For the frame provided, determine the following: A. The vertical component of the reaction at pin B, kN (in whole number) 20 kN B. The direction of the answer in letter A (down, up, left, or right) C. The horizontal component of the reaction at pin B, kN (in whole number) D. The direction of the answer in letter C (down, up, left, or right) 1m 1m Dr
3. A lever AB is hinged at C and is attached to a control cable at A. If the lever is subjected to a 60-lb vertical force at B, determine (a) the tension in the cable, (b) the reaction at C. 12 in. ic 20 9,6 in.
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: 0 = 20°, Ô0 = 5 deg/sec, Ö = 2 deg/sec?, 1 = 15 ft, 1 = 1.6 ft/sec, i = -2.0 ft/sec2. The quantities l and i are the first and second time derivatives, respectively, of the length I of section AB. Express your answers as vectors in the e, and eg directions. B 24' A Answers: VB = i e, + i ee) ft/sec ag = i e, + i eə) ft/sec2
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.
Prob. 2. A 1,000-ton train is accelerated at a constant rate up a 2% grade. The train resistance is constant at 10lb/ton. The velocity increases from 20mi/h to 40mi/h in a distance of 2,000ft Question#1 From Prob. 2, determine the constant drawbar pull exerted by the locomotive
*4-40. Both pulleys are fixed to the shaft and as the shaft turns with constant angular velocity, the power of pulley A is transmitted to pulley B. Determine the horizontal tension T in the belt on pulley B and the x, y, z components of reaction at the journal bearing C and thrust bearing D if 8 - 45°. The bearings are in proper alignment and exert only force reactions on the shaft. 200 min 250 mm 50 N 300 mi 150 mm S0 mm 65 N SO N
10:37 AM O O Of 227 2.PNG CER 3 СЕ 2. The frame show in the figure is supported by a hinge at A and a roller at E Compute the horizontal and vertical components of the hinge forces at B and the resultant reaction at C as they act upon member AC a Give the horizontal force component at B b. Give the vertical force component at B c Give the resultant reaction at C 6m 350 kN 3m 4m 2m+ 6m- 2m-
The assembly has a mass of 4 Mg and is hoisted using the winch at B. The boom has a mass of 2 Mg and mass center at G. Determine the greatest upward acceleration of the assembly so that the compressive force in the hydraulic cylinder supporting the boom does not exceed 182 kN. What is the tension in the supporting cable? 1m 4m B 2m 6m
The small crane is mounted along the side of a pickup bed and facilitates the handling of heavy loads. When the boom elevation angle is 0 = 37°, the force in the hydraulic cylinder BC is 4.1 kN, and this force applied at point C is in the direction from B to C (the cylinder is in compression). Determine the moment of this 4.1-kN force about the boom pivot point O. The moment is positive if counterclockwise, negative if clockwise. 610 mm 105 mm 285 mm 345 mm B Answer: Mo = kN-m
The system is released from rest with the cable taut. For the friction coefficients us= 0.25 and uk=0.20 , calculate the acceleration of each body and the tension T in the cable. Neglect the small mass and friction of the pulleys.