1. The train car on the left with mass mi is moving with speed Vii-24.0 m/s when it collides with a stationary car with mass m2. The two stick together and move with velocity V. a. Write initial momentum of the system by using symbols only? b. Write final momentum of the system by using symbols only? c. Use momentum conservation and solve for unknown v by using symbols? d. Calculate V if m₁ m₂? e. Show that the collision is inelastic? 2. Ballistic pendulum is a device used to measure the speed of a projectile. Bullet with mass m reach with velocity v and hit the mass M pendulum and both move together with velocity v' and reach maximum height h. I

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ISBN:9781305952300
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Chapter1: Units, Trigonometry. And Vectors
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Bb https://lea
Home | bartleby
Bb HW-2023 Spring:...
3. Overhead view of the path of race car and wall collision is shown below. Just before the collision, car travels
at speed 70m/s along a straight line at 30 degrees from the wall. Just after the collision, it travels at speed 50
m/s along a straight line at 10 degrees from the wall. If the total mass is 80kg, what will be the impulse on the
car due to collision?
30°
X'
Wall
Path
10⁰
4. The figure shows a symmetric T-shaped portion of your upper body that have the uniform thickness having
areal density of 5.0 kg/m². By neglecting the thickness of the body, find the center of mass of the entire T
with respect to the coordinate system shown in the figure?
YA
3m
*A
o
H
+B 2m
lm
Y
↑
lm
IS...
X
a.
Find mass of A and B objects?
b. Find Xcm?
Find Ycm?
Find r cm?
C.
d.
Transcribed Image Text:Bb https://lea Home | bartleby Bb HW-2023 Spring:... 3. Overhead view of the path of race car and wall collision is shown below. Just before the collision, car travels at speed 70m/s along a straight line at 30 degrees from the wall. Just after the collision, it travels at speed 50 m/s along a straight line at 10 degrees from the wall. If the total mass is 80kg, what will be the impulse on the car due to collision? 30° X' Wall Path 10⁰ 4. The figure shows a symmetric T-shaped portion of your upper body that have the uniform thickness having areal density of 5.0 kg/m². By neglecting the thickness of the body, find the center of mass of the entire T with respect to the coordinate system shown in the figure? YA 3m *A o H +B 2m lm Y ↑ lm IS... X a. Find mass of A and B objects? b. Find Xcm? Find Ycm? Find r cm? C. d.
1. The train car on the left with mass mi is moving with speed Vii-24.0 m/s when it collides with a stationary
car with mass m2. The two stick together and move with velocity V.
a. Write initial momentum of the system by using symbols only?
b. Write final momentum of the system by using symbols only?
c. Use momentum conservation and solve for unknown v by using symbols?
d. Calculate V if m₁ m₂?
e. Show that the collision is inelastic?
2. Ballistic pendulum is a device used to measure the speed of a projectile. Bullet with mass m reach with
velocity v and hit the mass M pendulum and both move together with velocity v' and reach maximum height
h.
m
l
M
VM=0
l
h
M+m
a. Write initial and final momentum for the system?
b. Use momentum conservation to find v' in terms of other parameters?
I
c. Use energy conservation by choosing initial as bottom of the pendulum and final as the top of the
pendulum, then find v' in terms of the other parameters?
d. Now find h in terms of v and masses?
e.
Calculate h if m=0.20kg, M=0.50kg and v=10.0 m/s?
Transcribed Image Text:1. The train car on the left with mass mi is moving with speed Vii-24.0 m/s when it collides with a stationary car with mass m2. The two stick together and move with velocity V. a. Write initial momentum of the system by using symbols only? b. Write final momentum of the system by using symbols only? c. Use momentum conservation and solve for unknown v by using symbols? d. Calculate V if m₁ m₂? e. Show that the collision is inelastic? 2. Ballistic pendulum is a device used to measure the speed of a projectile. Bullet with mass m reach with velocity v and hit the mass M pendulum and both move together with velocity v' and reach maximum height h. m l M VM=0 l h M+m a. Write initial and final momentum for the system? b. Use momentum conservation to find v' in terms of other parameters? I c. Use energy conservation by choosing initial as bottom of the pendulum and final as the top of the pendulum, then find v' in terms of the other parameters? d. Now find h in terms of v and masses? e. Calculate h if m=0.20kg, M=0.50kg and v=10.0 m/s?
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