3. A merry-go-round rotates from rest with an angular acceleration of 1.56 rad/s. How long does it take to rotate through the first 2 rev? A) 2s B) 4 s C) 6 s D) 8 s 10
3. A merry-go-round rotates from rest with an angular acceleration of 1.56 rad/s. How long does it take to rotate through the first 2 rev? A) 2s B) 4 s C) 6 s D) 8 s 10
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter11: Gravity, Planetary Orbits, And The Hydrogen Atom
Section: Chapter Questions
Problem 31P
Related questions
Question
3 only easy way to explain step by step must use provided formula
![v?
Circular motion: ac =
Weight: Fg = mg, ;
g= 9.8 m/s?;
Payr =
At
= ma;
Kinetic energy: K=
m v²;
Potential energy: Ug = mgy
E = Er
E = U+K
v2
Rotational motion:
1 rev = 2n rad;
v = o r;
a = a r;
a, =
= m°r;
@ = 0o + at;
e = 0o t+
20a = ? - 0,?
K=
T=rx F;
T= rFsino;
1
mR 2
2
ΣτΙα;
Ipoint mass = mr?
Iaisk =
mR?
Ipipe =
2 + Rin
12
-mL?
2.
Ipall =
Ihoop = mR?
Irod(center) =
Irod(end) =
mL?
Ishell =
dW
P =.
dt
W
Pavr =
At
2
2
I= Icom + MD²
work: W=t 0;
W =
Rolling:
Vcom = Ro
K =
Vcom ?
T= f,R
F,,max = H,Fn
Incline: Fg mgsin0 Fg mgcos0
Angular momentum:
Lpoint mass = m rxv
L= mrysin 0:
L=m (r,vy - ryVx)k
L= Io
m,X1 +m2x2
m, +m2
mıy1+m2y 2
m1 +m2
LI= Lr
I o =I 202
X com
y com =
3. A merry-go-round rotates from rest with an angular acceleration of 1.56 rad/s2. How long does it take to rotate through
the first 2 rev?
A) 2 s
В) 4 s
C) 6 s
D) 8 s
E) 10 s
4. A wheel, with radius R = 0.5 m, initially has an angular velocity of 2.5 rev/s, and is slowing down at a rate of 2 rad/s?.
By the time it stops spinning about its center, what distance will a point on the outer rim have traveled?.
A) 12 m
B) 18 m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5bad4e48-dad8-4710-a64b-b24b80d1efcf%2F980615e4-a0d9-48b5-8b8d-997aa170c443%2F3yrtyex_processed.jpeg&w=3840&q=75)
Transcribed Image Text:v?
Circular motion: ac =
Weight: Fg = mg, ;
g= 9.8 m/s?;
Payr =
At
= ma;
Kinetic energy: K=
m v²;
Potential energy: Ug = mgy
E = Er
E = U+K
v2
Rotational motion:
1 rev = 2n rad;
v = o r;
a = a r;
a, =
= m°r;
@ = 0o + at;
e = 0o t+
20a = ? - 0,?
K=
T=rx F;
T= rFsino;
1
mR 2
2
ΣτΙα;
Ipoint mass = mr?
Iaisk =
mR?
Ipipe =
2 + Rin
12
-mL?
2.
Ipall =
Ihoop = mR?
Irod(center) =
Irod(end) =
mL?
Ishell =
dW
P =.
dt
W
Pavr =
At
2
2
I= Icom + MD²
work: W=t 0;
W =
Rolling:
Vcom = Ro
K =
Vcom ?
T= f,R
F,,max = H,Fn
Incline: Fg mgsin0 Fg mgcos0
Angular momentum:
Lpoint mass = m rxv
L= mrysin 0:
L=m (r,vy - ryVx)k
L= Io
m,X1 +m2x2
m, +m2
mıy1+m2y 2
m1 +m2
LI= Lr
I o =I 202
X com
y com =
3. A merry-go-round rotates from rest with an angular acceleration of 1.56 rad/s2. How long does it take to rotate through
the first 2 rev?
A) 2 s
В) 4 s
C) 6 s
D) 8 s
E) 10 s
4. A wheel, with radius R = 0.5 m, initially has an angular velocity of 2.5 rev/s, and is slowing down at a rate of 2 rad/s?.
By the time it stops spinning about its center, what distance will a point on the outer rim have traveled?.
A) 12 m
B) 18 m
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