In what direction does the cm move?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter10: Fixed-axis Rotation
Section: Chapter Questions
Problem 63P: A system consists of a disk of mass 2.0 kg and radius 50 cm upon which is mounted an annular...
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Hi, can you provide me with the work and solution for these physics practice problems I have in preparation for my midterm that I do not understand? I have attached the two images of the prompt and the questions below. Thanks!! 

Part A
In what direction does the cm move?
To the left
O To the right
Submit
Request Answer
Part B
When the disk has moved a distance of 6.8 m , determine how fast it is moving
Express your answer using two significant figures.
Πναη ΑΣΦ
m/s
Submit
Request Answer
Part C
How fast it is spinning (in radians per second).
Express your answer using two significant figures.
?
rad/s
Submit
Request Answer
Part D
How much string has unwrapped from around the rim.
Express your answer using two significant figures.
IVα ΑΣΦ
?
S =
m
Transcribed Image Text:Part A In what direction does the cm move? To the left O To the right Submit Request Answer Part B When the disk has moved a distance of 6.8 m , determine how fast it is moving Express your answer using two significant figures. Πναη ΑΣΦ m/s Submit Request Answer Part C How fast it is spinning (in radians per second). Express your answer using two significant figures. ? rad/s Submit Request Answer Part D How much string has unwrapped from around the rim. Express your answer using two significant figures. IVα ΑΣΦ ? S = m
A solid uniform disk of mass 21.0 kg and radius 85.0 cm is at rest flat
on a frictionless surface. The figure (Figure 1) shows a view from
above. A string is wrapped around the rim of the disk and a constant
force of 35.0 N is applied to the string. The string does not slip on the
rim.
Figure
1 of 1
21.0 kg
85.0 cm
F = 35 N
Transcribed Image Text:A solid uniform disk of mass 21.0 kg and radius 85.0 cm is at rest flat on a frictionless surface. The figure (Figure 1) shows a view from above. A string is wrapped around the rim of the disk and a constant force of 35.0 N is applied to the string. The string does not slip on the rim. Figure 1 of 1 21.0 kg 85.0 cm F = 35 N
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