Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
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Chapter 10, Problem 28P
In Fig. 10-31, wheel A of radius rA = 10 cm is coupled by belt B to wheel C of radius rC = 25 cm. The angular speed of wheel A is increased from rest at a constant rate of 1.6 rad/s2. Find the time needed for wheel C to reach an angular speed of 100 rev/min, assuming the belt does not slip. (Hint: If the belt does not slip, the linear speeds at the two rims must be equal.)
Figure 10-31 Problem 28.
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wheel A of radius rA = 10 cm is coupled by belt B to wheel C of radius rC = 25 cm.The angular speed of wheel A is increased from rest at a constant rate of 1.6 rad/s2. Find the time needed for wheel C to reach an angular speed of 100 rev/min, assuming the belt does not slip. (Hint: If the belt does not slip, the linear speeds at the two rims must be equal.)
=
(a) In the figure below, wheel A of radius TA
B to wheel C of radius rc
10 cm is coupled by belt
25 cm. The angular speed of wheel
A is increased from rest at a constant rate of 1.6 rad/s². Find the
time needed for wheel C to reach an angular speed of 100 rev/min,
assuming the belt does not slip. (Hint: If the belt does not slip, the
linear speeds at the two rims must be equal.)
TC
B
The flywheel of a steam engine runs with a constant angular velocity of 140 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 1.4 h. (a)
What is the constant angular acceleration, in revolutions per minute-squared, of the wheel during the slowdown? (b) How many revolutions does the wheel make before stopping? (c)
At the instant the flywheel is turning at 70.0 rev/min, what is the tangential component of the linear acceleration of a flywheel particle that is 27 cm from the axis of rotation? (d)
What is the magnitude of the net linear acceleration of the particle in (c)?
(a) Numbe
Units
rev/min^2 v
-1.67
(b) Numbel
Unit
5868.24
rev
(c) NumberX
-0.000549
Units
Tm/s~2
(d) Numberx
Units
m/s 2
0.1221718105
Chapter 10 Solutions
Fundamentals of Physics Extended
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