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
nignag [31]
3 years ago
15

two vehicles have a head on collision. one vehicle has a mass of 3000 kg and moves at 25 m/s while the second vehicle has a mass

of 2500 kg and moves at -15 m/s. if the vehicles stick together after the collision what is the speed of the combined vehicles
Physics
1 answer:
emmasim [6.3K]3 years ago
7 0

Answer:

The speed of the combined vehicles is 6.82m/s

Explanation:

Using the law of conservation of momentum which stayed that the sum of momentum of bodies before collision is equal to their sum of momentum after collision. After collision, both object moves with the same velocity.

Momentum = mass×velocity

Before collision:

Momentum of vehicle or mass 3000kg moving with velocity 25m/s

= 3000×25

= 75000kgm/s

Pa = 75000kgm/s

Momentum of vehicle with mass 2500kg moving with velocity of -15m/s

= 2500×-15

= -37500kgm/s

After collision:

Momentum = (3000+2500)V

Where v is their common velocity

Momentum after collision = 5500V

Based on the law:

75000+(-37500) = 5500V

75000-37500 = 5500V

37500 = 5500V

V = 37500/5500

V = 6.82m/s

You might be interested in
What are the 6 characteristics of life?
stepladder [879]
Organization
Growth and development
Response to a stimulus
Homeostasis
Energy
5 0
3 years ago
Read 2 more answers
When the air resistance can be ignored the velocity of an object dropped initially from rest is given by the following equation
ad-work [718]

Answer:

I am confused of your question. Do you want final velocity? To get final velocity, use (initial V)+(Gravity*Time)

Explanation:

8 0
3 years ago
Read 2 more answers
Cotton balls could be used to represent clouds because of their white color and appearance of texture. Which of these other thin
iris [78.8K]

I just did it the answer is..... B.cobwebs

:)

8 0
3 years ago
Read 2 more answers
Incident rays parallel to the principle axis of a concave mirror will reflect _____. parallel to the principle axis through the
Svetradugi [14.3K]
I’m not sure if its correct but I think it’s focal Ray point


For concave mirrors, some generalizations can be made to simplify ray construction. They are: An incident ray traveling parallel to the principal axis will reflect and pass through the focal point. An incident ray traveling through the focal point will reflect and travel parallel to the principal axis.
8 0
3 years ago
Read 2 more answers
Jasmine is late to science class and misses the very beginning of notes for the day. These are Jasmine’s notes: –Round objects t
SpyIntel [72]

Answer:

d

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • As the bullet flies through the air it is affected by which of the following forms of force?
    10·1 answer
  • The law of reflection states that if the angle of incidence is 81 degrees, the angle of reflection is ___ degrees.
    11·1 answer
  • A straight vertical wire carries a current of 1.0 A into the page in a region where the magnetic field strength is 0.60 T. What
    7·1 answer
  • PLEASE HELP ME
    8·1 answer
  • The rate of distance traveled per unit of time, without regard to direction
    11·2 answers
  • -15° C ice is warmed, melted, water is warmed then vaporized then the vapor is
    6·1 answer
  • 1. Compared to most other metals, what properties do the alkali metals have? А low melting points and high densities B low melti
    5·1 answer
  • Define position <br> i am not sure?
    13·1 answer
  • What is a charge? how objects can be charged? short answer pls​
    9·1 answer
  • Heat always transfers from substances with _____ thermal energy to substances with _______ thermal until both substances reach t
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!