Use the formula that provided here plus don’t copy from chegg. Explain me step by step would be helpful please 12,13,15,16 12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? answer is 4 m/s and 10 m
Use the formula that provided here plus don’t copy from chegg. Explain me step by step would be helpful please 12,13,15,16 12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? answer is 4 m/s and 10 m
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
Related questions
Question
Use the formula that provided here plus don’t copy from chegg. Explain me step by step would be helpful please 12,13,15,16
12. A 4-kg ball moving to the right at 12 m/s collides elastically with a 2-kg ball moving to the left at 6 m/s. What are the speeds of the 4-kg and the 2-kg balls after the collision? answer is 4 m/s and 10 m/s
13. A 2-kg block is placed at the top of a 5-m high, frictionless ramp and is released from rest. At the bottom of the ramp the 2-kg block collides with a 1-kg block that is initially at rest. The blocks stick together. What is the velocity of the blocks after the collision? answer is 6.6m/s
15. A 3-kg box is moving at 6.0 m/s atop a hill that is 5.0 m above a flat frictionless surface. It descends the hill (also frictionless) and at the bottom of the hill contacts an ideal spring, which compresses 1.53 m before stopping. What is the spring constant k ? answer is 172n/m
16. A 2-kg box is released from rest from the top of a 5-m-high frictionless ramp. At the bottom of the ramp the box has an elastic collision with an 8-kg box that is initially at rest. The 2-kg box bounces off the 8-kg box and goes back up the ramp. To what height does the 2-kg block return up the ramp before coming to rest? answer is 1.8m
![As a student at NJIT I will conduct myself in a professional manner and Will comply wIth the proVislons 8f the
NJIT Academic Honor Code. I also understand that I must subscribe to the following pledge : On my honor, I
pledge that I have not violated the provisions of the NJIT Academic Honor Code.
The exam is closed book and closed notes.
v?
Circular motion: a, =
R
Pavr =
At
Weight: Fg= mg,;
g = 9.8 m/s?;
Fnet = ma;
1
Kinetic energy: K = m v; Potential energy: Ug = mgy
E = Er
E = U+K
2
1 rev = 2n rad;
v2
= o'r;
Rotational motion:
v = o r;
a, =
r
a = a r;
0 = 0o + at;
1
0 = 0o t+ .
20a = m? - 0o?
T=r x F;
T= rFsin%;
K=
2
mR
1
Icy= -mR
2
Στ- Ια;
Ipoint mass = mr?
Idisk =
2
+
out
1
1
Irod(end) =
3
Ihoop = mR?
Irod(center) =
-mL?
Iball =
mR2
Ishell =
mR?
12
I= Icom + MD²
work: W=t0;
2
W =
2
K=
dW
P =
W
Pavr =
At
2
dt
Rolling:
1
-m Vcom ?
Vcom = Ro
K=
T= f,R
Fsmax = H,Fn
Incline: Fg= mgsin0 Fg mgcos®
Angular momentum:
Lpoint mass =m rxy
L= mrvsin 0;
L=m (r,Vy - ryV3)k
L=Io
LI = L
I 01 =I 202
m,X1+m2X2
X com =
miyı+m2y2
m, +m2
Y com =
m1 +m2](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5bad4e48-dad8-4710-a64b-b24b80d1efcf%2F6c6bc08d-ae91-45f1-91c1-8064963339d5%2Fcd7tohn_processed.jpeg&w=3840&q=75)
Transcribed Image Text:As a student at NJIT I will conduct myself in a professional manner and Will comply wIth the proVislons 8f the
NJIT Academic Honor Code. I also understand that I must subscribe to the following pledge : On my honor, I
pledge that I have not violated the provisions of the NJIT Academic Honor Code.
The exam is closed book and closed notes.
v?
Circular motion: a, =
R
Pavr =
At
Weight: Fg= mg,;
g = 9.8 m/s?;
Fnet = ma;
1
Kinetic energy: K = m v; Potential energy: Ug = mgy
E = Er
E = U+K
2
1 rev = 2n rad;
v2
= o'r;
Rotational motion:
v = o r;
a, =
r
a = a r;
0 = 0o + at;
1
0 = 0o t+ .
20a = m? - 0o?
T=r x F;
T= rFsin%;
K=
2
mR
1
Icy= -mR
2
Στ- Ια;
Ipoint mass = mr?
Idisk =
2
+
out
1
1
Irod(end) =
3
Ihoop = mR?
Irod(center) =
-mL?
Iball =
mR2
Ishell =
mR?
12
I= Icom + MD²
work: W=t0;
2
W =
2
K=
dW
P =
W
Pavr =
At
2
dt
Rolling:
1
-m Vcom ?
Vcom = Ro
K=
T= f,R
Fsmax = H,Fn
Incline: Fg= mgsin0 Fg mgcos®
Angular momentum:
Lpoint mass =m rxy
L= mrvsin 0;
L=m (r,Vy - ryV3)k
L=Io
LI = L
I 01 =I 202
m,X1+m2X2
X com =
miyı+m2y2
m, +m2
Y com =
m1 +m2
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