Problem 13.21 The 450-kg mine car is hoisted up the incline using the cable and motor M. For a short time, the force in the cable is F= (3000t2) N, where t is in seconds. (Figure 1) Figure 1 of 1 = 2 m/s alt Part A If the car has an initial velocity ₁ = 2m/s at s = 0 and t = 0, determine the distance the plane when t = 3 s. Express your answer to three significant figures and include the appropriate units. S = O D Submit |μA Value Units My Answers Give Up ? Provide Feedback moves up Continue

Problem 13.21 The 450-kg mine car is hoisted up the incline using the cable and motor M. For a short time, the force in the cable is F= (3000t2) N, where t is in seconds. (Figure 1) Figure 1 of 1 = 2 m/s alt Part A If the car has an initial velocity ₁ = 2m/s at s = 0 and t = 0, determine the distance the plane when t = 3 s. Express your answer to three significant figures and include the appropriate units. S = O D Submit |μA Value Units My Answers Give Up ? Provide Feedback moves up Continue

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

A two-tier system to repair bridges is supported by two steel cables for each platform. Lengths of the cables are la = 50 in. and lp = 190 in. Assume that two 190 lb workers are going to be standing on the system to repair a bridge, one on each platform. The following design requirement must be met: the stretch of each cable must be less than 0.02 in. at the worst-case loading condition for each cable. 140 in. 250 lb 190 in. 400 lb Determine the minimum diameter required for each cable. (Express your answers using two decimal places.) Cable at A: in. Cable at B: in. Cable at C: in. Cable at D: in.
3. Blocks A and B starts from rest. The horizontal plane and the pulley are frictionless and with negligible mass. Determine the acceleration of each block. A D 350kg C 250kg | B
3. Problem: For the beams and loading shown above, (a) formulate the function of expression forV(x)andM(x)with respect to the distancex, and(b)draw theV(x)andM(x)diagrams.
3. Determine if the tractor which has a weight of 8000 lb with center of gravity at G, can push the 550-lb log up the incline. The coefficient of static friction between the log and the ground is 0.5, and between the rear wheels of the tractor and the ground 0.8. The front wheels are free to roll. Assume the engine can develop enough torque to cause the rear wheels to slip. 1.25 ft B 2.5 ft |10° 3 ft -7 ft
The 2.5-Mg car is being towed by a winch. If the winch exerts a force of T = 132.2(s + 1) N on the cable, where s is the displacement of the car in meters, determine the speed of the car in m/s when s = 11 m, starting from rest. Neglect rolling resistance of the car.
The hoisting system shown is used to easily raise kayaks for overhead storage. Determine the velocity and acceleration of the kayak (positive if upward, negative if downward) when y = 95 in. if the winch M reels in cable at the constant rate i = 8 in./sec. Assume that the kayak remains level. The distance b = 67 in. Answers: V = M a = i i ·b. ·b in./sec in./sec² B b
A winch at point B is used to slide a box up a chute CD in a warehouse. If the component of the force from cable AB in the direction of the chute must be 410 lb, determine the force in the cable for the position of the box given below. The chute is parallel to the xz 1 the distance up the chute plane. Neglect the size of the box and the winch. The box is from point C. 105in. Z B (-45, 0, 130) in. 135in. 40 in y FAB = lb
100 lb In the fig. shown, compute the minimum Weight W to prevent impending motion of the block up the incline. The weight of the block is 100 lb as shown and the coefficient of friction between the block and the incline u = 0.45. Assume frictionless pulley. 450