(d) What distance does the car travel in this time? Hint: How is the arc length traveled by a point on the tire's rim related to the horizontal distance traveled by the tire? X = (e) What was the car's initial velocity? V₁ = m stop (f) Do the values obtained seem reasonable, considering that this stop happens very quickly? The car is initially travelling at m S min m so a stopping distance of s seems 4 ✓for a panic

College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter7: Rotational Motion And Gravitation
Section: Chapter Questions
Problem 6P: A centrifuge in a medical laboratory rotates at an angular velocity of 3600 rev/min. When switched...
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Please answer only d) e) f)
(d) What distance does the car travel in this time? Hint: How is the arc length traveled by a point on
the tire's rim related to the horizontal distance traveled by the tire?
X =
(e) What was the car's initial velocity?
V₁ =
m
stop.
m
S
(f) Do the values obtained seem reasonable, considering that this stop happens very quickly?
The car is initially travelling at
min
m
so a stopping distance of
s seems
4
✓for a panic
Transcribed Image Text:(d) What distance does the car travel in this time? Hint: How is the arc length traveled by a point on the tire's rim related to the horizontal distance traveled by the tire? X = (e) What was the car's initial velocity? V₁ = m stop. m S (f) Do the values obtained seem reasonable, considering that this stop happens very quickly? The car is initially travelling at min m so a stopping distance of s seems 4 ✓for a panic
1.
During a very quick stop, a car decelerates at 12
(a) What is the angular acceleration of its 0.27 m radius tires, assuming they do not slip on the
pavement? Hint: Don't forget the sign.
a =
S
rad
s²
(b) How many revolutions do the tires make before coming to rest, given their initial angular velocity
rad
is 98
-?
E
revolutions
(c) How long does the car take to stop completely?
t =
S
Transcribed Image Text:1. During a very quick stop, a car decelerates at 12 (a) What is the angular acceleration of its 0.27 m radius tires, assuming they do not slip on the pavement? Hint: Don't forget the sign. a = S rad s² (b) How many revolutions do the tires make before coming to rest, given their initial angular velocity rad is 98 -? E revolutions (c) How long does the car take to stop completely? t = S
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