Engineering Mechanics: Dynamics (14th Edition)
14th Edition
ISBN: 9780133915389
Author: Russell C. Hibbeler
Publisher: PEARSON
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Chapter 13.4, Problem 40P
The 400-lb cylinder at A is hoisted using the motor and the pulley system shown. If the speed of point B on the cable is increased at a constant rate from zero to vB = 10ft/ s in t = 5 s, determine the tension in the cable at B to cause the motion.
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If the motor draws in the cable with an acceleration of 3 m/s^2, determine the reactions at the supports A and B. The beam has a uniform mass of 30 kg/m, and the crate has a mass of 200 kg. Neglect the mass of the motor and pulleys.
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Figure
12 m
-SA
1 of 1
Part A
Determine the tension in the rope at this instant.
Express your answer to three significant figu
T =
Value
N
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The weight of the spring held follower AB is 0.367 kg and moves back and forth as its end rolls on the contoured surface of the cam, where r = 0.2 ft and z = (0.1sin20) ft. If the cam is rotating at a constant rate of 6
rad/s, determine the force, in lb, at the end A of the follower where 0 = 45°. In this position, the spring is compressed 0.4 ft. Neglect friction at the bearing C. Round your answer to 3 decimal places.
6 = 6 rad/s
0.2 ftX
z = 0.1 sin 20
Z
A
k = 12 lb/ft
с
B
Chapter 13 Solutions
Engineering Mechanics: Dynamics (14th Edition)
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