1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ANEK [815]
3 years ago
10

A moving freight car collides with an identical one that is at rest. If momentum is conserved, what happens to the second car af

ter the collision?
Physics
1 answer:
JulijaS [17]3 years ago
8 0
<h2>Answer</h2>

There will be two different possiblites as

May be one is in rest or other move

May be both will be in motion

<h2>Expalanation</h2>

According to Conservation Law of Momentum, when the two objects collide with each other, they transferred their kinetic energy to keep their momentum before or after collisions remain constant. In the present example, one moving car collides with another car which is at rest and has the same weight. There will be two possibilities after the collision as an elastic collision or perfect inelastic collision. In the elastic collision, the one car will adopt the rest position after the collision and transfer it K.E to make the rest car at the movable position. In the perfect inelastic collision, both cars will move after the collision.

You might be interested in
Hello Peeps can y'all PLEASE HELP ME? I need to graduate!
Ainat [17]
0A: accelerating
AB: constant
BC: decelerating
CD:at rest
DE:accelerating
EF: constant


hope this helps
3 0
3 years ago
What is the frequency of a wave with a wavelength of 12 meters and a velocity of 4 m/s?
trasher [3.6K]

Answer:

0.33 hz

Explanation:

the formula for the frequency in this situation is f=v/wavelength

8 0
2 years ago
WILL MARK BRAINLIEST! PLS ANSWER ASAP
Montano1993 [528]

Answer

What makes up a perfect planet? It is the right distance from the Sun, it is protected from harmful solar radiation by its magnetic field, it is kept warm by an insulating atmosphere, and it has the right chemical ingredients for life, including water and carbon. Proportionate Ozone Layer and Light amount. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the Universe. This is the perfect planet. In the end a perfect planet includes SUSTAINBLE DEVELOPEMNT IN EVERY ASPECT OF LIFE!

Explanation:

5 0
3 years ago
Read 2 more answers
A sphere has an unknown amount of charge distributed uniformly at a distance of 0.56cm from the center of the of the sphere, the
Mars2501 [29]
2+2+2+2+22++2+2+2+2+222+2++2c2+2+2+2+2+2
7 0
3 years ago
A 6.99-g bullet is moving horizontally with a velocity of +341 m/s, where the sign + indicates that it is moving to the right (s
Ratling [72]

Answer:

a). 1.218 m/s

b). R=2.8^{-3}

Explanation:

m_{bullet}=6.99g*\frac{1kg}{1000g}=6.99x10^{-3}kg

v_{bullet}=341\frac{m}{s}

Momentum of the motion the first part of the motion have a momentum that is:

P_{1}=m_{bullet}*v_{bullet}

P_{1}=6.99x10^{-3}kg*341\frac{m}{s} \\P_{1}=2.3529

The final momentum is the motion before the action so:

a).

P_{2}=m_{b1}*v_{fbullet}+(m_{b2}+m_{bullet})*v_{f}}

P_{2}=1.202 kg*0.554\frac{m}{s}+(1.523kg+6.99x10^{-3}kg)*v_{f}

P_{1}=P_{2}

2.529=0.665+(1.5299)*v_{f}\\v_{f}=\frac{1.864}{1.5299}\\v_{f}=1.218 \frac{m}{s}

b).

kinetic energy

K=\frac{1}{2}*m*(v)^{2}

Kinetic energy after

Ka=\frac{1}{2}*1.202*(0.554)^{2}+\frac{1}{2}*1.523*(1.218)^{2}\\Ka=1.142 J

Kinetic energy before

Kb=\frac{1}{2}*mb*(vf)^{2}\\Kb=\frac{1}{2}*6.99x10^{-3}kg*(341)^{2}\\Kb=406.4J

Ratio =\frac{Ka}{Kb}

R=\frac{1.14}{406.4}\\R=2.8x10^{-3}

3 0
3 years ago
Other questions:
  • A girl pushes a cart with a force of 10 N. if the cart has a mass of 5 kg, what is its acceleration?
    13·1 answer
  • From which end (north or south) of a bar magnet do magnetic field lines emerge?
    12·1 answer
  • Use Kepler’s third law and the orbital motion of Earth to determine the mass of the Sun. The average distance between Earth and
    7·2 answers
  • A heavy dart and a light dart are launched vertically by identical ideal springs. Both springs were initially compressed by the
    11·1 answer
  • A large box of mass M is moving on a horizontal surface at speed v0. A small box of mass m sits on top of the large box. The coe
    13·1 answer
  • What are the movements of boiling water? I'm looking for if they speed up, like that sort of thing. Not how, not why, just what
    5·1 answer
  • A book weighing 5 N rests on top of a table. 1) A downward force of magnitude 5 N is exerted on the book by the force of
    12·1 answer
  • What's the answer for question 2?
    15·1 answer
  • Drugs that slow brain and body activities are called
    8·2 answers
  • How many lines does each stanza contain?<br><br> 2<br> 3<br> 4<br> 6
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!