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Perez (nap563) – HW08 – TSOI – (58160)
1
This printout should have 24 questions.
Multiplechoice questions may continue on
the next column or page – fnd all choices
beFore answering.
001
10.0 points
A rigid circular wheel spins at constant angu
lar velocity about a stationary axis. Choose
the picture below that correctly describes the
relative magnitudes and directions oF the ve
locity vector oF points on the wheel.
1.
2.
3.
4.
5.
6.
7.
8.
002
(part 1 oF 4) 10.0 points
A potter’s wheel oF radius 17 cm starts From
rest and rotates with constant angular accel
eration until at the end oF 30 s it is moving
with angular velocity oF 11 rad
/
s.
What is the angular acceleration?
Answer in units oF rad
/
s
2
.
003
(part 2 oF 4) 10.0 points
What is the linear velocity oF a point on the
rim at the end oF the 30 s?
Answer in units oF m
/
s.
004
(part 3 oF 4) 10.0 points
What is the average angular velocity oF the
wheel during the 30 s?
Answer in units oF rad
/
s.
005
(part 4 oF 4) 10.0 points
Through what angle did the wheel rotate in
the 30 s?
Answer in units oF rad.
006
10.0 points
The speed oF a moving bullet can be deter
mined by allowing the bullet to pass through
two rotating paper disks mounted a distance
100 cm apart on the same axle. ±rom the
angular displacement 36
.
7
◦
oF the two bul
let holes in the disks and the rotational speed
1044 rev
/
min oF the disks, we can determine
the speed oF the bullet.
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View Full DocumentPerez (nap563) – HW08 – TSOI – (58160)
2
36
.
7
◦
v
1044 rev
/
min
100 cm
What is the speed of the bullet?
Answer in units of m
/
s.
007
(part 1 of 2) 10.0 points
A grinding wheel, initially at rest, is ro
tated with constant angular acceleration of
5
.
11 rad
/
s
2
for 3
.
82 s.
The wheel is then
brought to rest with uniform deceleration in
10
.
1 rev.
Find the angular deceleration required to
bring the wheel to rest.
Answer in units of rad
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 Spring '08
 Turner
 Physics

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