Use formulas from the one I provided a page please and explain me step by step = 1. A mass is revolving in a horizontal circle. The path of the mass has a radius of 0.050 m and a period of 0.50 s. What is the linear speed of the mass in m/s? a. 0.63 b. 0.32 C. d. 021 0.05 e. 3.1 2. A small ball is revolving in a horizontal circle and is held by a rigid rod. The path of the ball has a constant linear speed. The ball has a mass m=1 kg. The force exerted by the rod is 0.5 N. What is the centripetal acceleration in m/s?? a. Unknown: Need R b. 1 C.10 D.0.05 E. 0.5 = 3. A ball is revolving horizontally in a circle and is held by a rigid rod. The mass of the ball is 0.1 kg. The path of the ball has an angular velocity of 10 rad/s and a radius of 0.1 m. What is the linear speed of the ball in m/s? a. 1 b. 1/10 C.1/100 d 10 e 100

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Use formulas from the one I provided a page please and explain me step by step = 1. A mass is revolving in a horizontal circle. The path of the mass has a radius of 0.050 m and a period of 0.50 s. What is the linear speed of the mass in m/s? a. 0.63 b. 0.32 C. d. 021 0.05 e. 3.1 2. A small ball is revolving in a horizontal circle and is held by a rigid rod. The path of the ball has a constant linear speed. The ball has a mass m=1 kg. The force exerted by the rod is 0.5 N. What is the centripetal acceleration in m/s?? a. Unknown: Need R b. 1 C.10 D.0.05 E. 0.5 = 3. A ball is revolving horizontally in a circle and is held by a rigid rod. The mass of the ball is 0.1 kg. The path of the ball has an angular velocity of 10 rad/s and a radius of 0.1 m. What is the linear speed of the ball in m/s? a. 1 b. 1/10 C.1/100 d 10 e 100
The exam is closed book and closed notes.
v2
Circular motion: a. =
R
W
Pavr =
At
Fnet = ma;
Weight: Fg = mg,;
g= 9.8 m/s²;
1
Kinetic energy: K =
m v
Potential energy: Ug = mgy
E = Er
E = U+K
v2
Rotational motion:
1 rev = 2n rad;
v = o r;
at = a r;
a, =
r
O = 0o + at;
0 = 0o t +
2
20a = 0? - 0²
T=rx F;
T= rFsin%;
1
mR
2
Στ- Ια;
Ipoint
mass = mr?
Idisk =
mR?
out +Rin
2
1
1
Irod(end) =mi
mL?
2
Ihoop = mR?
Irod(center) =
mL?
Iball =
Ishell =
%3D
mR?
mR2
12
dW
P =
dt
I= Icom + MD?
2
W
Pavr =
At
work: W=t0;
2
K=
W =
Rolling:
2+ 1
Vcom = Rø
K =
Io
m Vcom
2
T= f,R
F,,max = HFn
Incline: Fe= mgsin0 Fg mgcos0
Angular momentum:
Lpoint mass = m rxv
L= mrvsin 0;
L=m (r.Vy - ryVz)k
L= lo
lng down ia rof 2
dled
LI = Lr
m,x1 +m2x2
miy1 +m2y 2
m1 +m2
I o =I 202
X com =
Y com =
m1 +m2
1
Transcribed Image Text:The exam is closed book and closed notes. v2 Circular motion: a. = R W Pavr = At Fnet = ma; Weight: Fg = mg,; g= 9.8 m/s²; 1 Kinetic energy: K = m v Potential energy: Ug = mgy E = Er E = U+K v2 Rotational motion: 1 rev = 2n rad; v = o r; at = a r; a, = r O = 0o + at; 0 = 0o t + 2 20a = 0? - 0² T=rx F; T= rFsin%; 1 mR 2 Στ- Ια; Ipoint mass = mr? Idisk = mR? out +Rin 2 1 1 Irod(end) =mi mL? 2 Ihoop = mR? Irod(center) = mL? Iball = Ishell = %3D mR? mR2 12 dW P = dt I= Icom + MD? 2 W Pavr = At work: W=t0; 2 K= W = Rolling: 2+ 1 Vcom = Rø K = Io m Vcom 2 T= f,R F,,max = HFn Incline: Fe= mgsin0 Fg mgcos0 Angular momentum: Lpoint mass = m rxv L= mrvsin 0; L=m (r.Vy - ryVz)k L= lo lng down ia rof 2 dled LI = Lr m,x1 +m2x2 miy1 +m2y 2 m1 +m2 I o =I 202 X com = Y com = m1 +m2 1
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