Vector Mechanics for Engineers: Dynamics
11th Edition
ISBN: 9780077687342
Author: Ferdinand P. Beer, E. Russell Johnston Jr., Phillip J. Cornwell, Brian Self
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 12.2, Problem 12.90P
A 1 -kg collar can slide on a horizontal rod that is free to rotate about a vertical shaft. The collar is initially held at A by a cord attached to the shaft. A spring of constant 30 N/m is attached to the collar and to the shaft and is undeformed when the collar is at A. As the rod rotates at the rate
the mass of the rod, determine (a) the radial and transverse components of the acceleration of the collar at A, (b) the acceleration of the collar relative to the rod at A, (c) the transverse component of the velocity of the collar at B.
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Students have asked these similar questions
H4.
Rod OA rotates counterclockwise at a constant angular
rate 0-4 rad/s. The double collar B is pin-connected
together such that one collar slides over the rotating rod
and the other collar slides over the circular rod described
by the equation r= (1.6 cos 6) m. Both collars have a
mass of 0.65 kg. Motion is in the vertical plane.
(Figure 1)
Figure
r=1.6 cos 9.
0-4 rad/s
0.8 m
1 of 1
Part A
Determine the magnitude of the force which the circular rod exerts on one of the collars at the instant 0=45
Express your answer to three significant figures and include the appropriate units.
▸ View Available Hint(s)
F= Value
Submit
μÁ
Part B
Previous Answers
Units
X Incorrect; Try Again; 5 attempts remaining
Determine the magnitude of the force that OA exerts on the other colar at the instant @-45.
Express your answer to three significant figures and include the appropriate units.
View Available Hint(s)
The system shown below consists of a uniform disk D that has a mass of mp = 3.0
kg and a radius of r = 0.5 meters. The disk is connected by a massless cable to a
block. The system is released from rest and the disk starts rolling without sliding
with the angular acceleration of a = 24 rad in the clockwise direction. Determine
the tension developed in the cable (in Newtons) at this instant. Consider 0 = 30°
and g
10 *
mp
Chapter 12 Solutions
Vector Mechanics for Engineers: Dynamics
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