Question
A disk with mass m = 9.5 kg and radius R = 0.3 m begins at...
A disk with mass m = 9.5 kg and radius R = 0.3 m begins at rest
and accelerates uniformly for t = 18 s, to a final angular speed of
ω = 28 rad/s.
A)What is the angular acceleration of the disk?
B)What is the angular displacement over the 18 s?
C)What is the moment of inertia of the disk?
D)What is the change in rotational energy of the disk?
E)What is the tangential component of the acceleration of a point
on the rim of the disk when the disk has accelerated to half its
final angular speed?
F)What is the magnitude of the radial component of the acceleration
of a point on the rim of the disk when the disk has accelerated to
half its final angular speed
G)What is the final speed of a point on the disk half-way between
the center of the disk and the rim?
H)What is the total distance a point on the rim of
the disk travels during the 18 seconds?
Homework Answers
Answer #1
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