Engineering Mechanics: Dynamics (14th Edition)
14th Edition
ISBN: 9780133915389
Author: Russell C. Hibbeler
Publisher: PEARSON
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Textbook Question
Chapter 19.2, Problem 23P
The hoop (thin ring) has a mass of 5 kg and is released down the inclined plane such that It has a backspin ω = 8 rad/s and its center has a velocity vG = 3 m/s as shown. If the coefficient of kinetic friction between the hoop and the plane is μk = 0.6, determine how long the hoop rolls before it stops slipping.
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The 15-kg bar is released from rest while in the position shown and its end rollers travel in the vertical-plane slot shown. If
the speed of roller A is 3.23 m/s as it passes point C, determine the work done by friction on the system over this portion of
the motion. The bar has a length /= 775 mm.
Assume 8 = 34°
0
B
B3
The weight of the spring held follower AB is 0.381 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 Ib, at the end A of the follower where e = 45°. In this position, the spring is compressed 0.4 ft. Neglect friction at the bearing
C. Round your answer to 3 decimal places.
z = 0.1 sin 20
0.2 ft
e = 6 rad/s
A
k = 12 lb/ft
Chapter 19 Solutions
Engineering Mechanics: Dynamics (14th Edition)
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