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
kifflom [539]
3 years ago
10

How much force does it take to stop a 1,000 kg car traveling at 20 m/s in 10 seconds?

Physics
1 answer:
Doss [256]3 years ago
5 0
The initial momentum of the car is

                (mass) x (speed)  =  20,000 kg-m/s

"Impulse" is (force exerted) x (time the force lasts)
and it's equal to the change in momentum.

              (Force) x (10 sec)  =  20,000 kg-m/s

Divide each side by  (10 sec)  and you have

                      Force  =  (20,000 kg-m/s) / (10 sec)

                                 =          2,000 kg-m/s²  =  2,000 Newtons

You might be interested in
Select all the wave properties that can change how we perceive light waves.amplitudeamplitudecrestscreststimetimefrequency
ASHA 777 [7]

The properties that change how we perceive light waves are the following:

The amplitude of the light wave changes the brightness of light relative to other light waves of the same wavelenghth.

The frequency of the light wave changes the color and the type of the light wave.

6 0
1 year ago
A car is moving at 76 miles per hour. the kinetic energy of that car is 5 × 105 j. how much energy does the same car have when i
valentina_108 [34]
Its would be 144. cause if u think about it
3 0
3 years ago
A small object is attached to a horizontal spring and set in simple harmonic motion with amplitude A and period T .
kupik [55]

Answer:

t = 3/2T

To find how long it takes to cover a total distance of 6A, we need to find the time it takes to cover a distance A then multiply by 6.

The step to the solution is given below in the attachment.

Explanation:

Thank you for reading

4 0
3 years ago
PLSSSS help meeeeee lol
Elis [28]

Answer:

B. As the temperature increases, the kinetic energy of the molecules increases.

Explanation:

When the temperature of an object increases, the kinetic energy of its particles increases, so the thermal energy of an object increases as its temperature increases.

3 0
3 years ago
Describe an example where materials are prepared as fluids so that they can be moved easily
den301095 [7]

Answer:

In general solids are easier to transport than liquids, but the above metal example is a valid one and the only other one that comes to mind is that of concrete. It is mixed as a liquid and transported as such, but then sprayed or laid down to dry and form a solid surface or filler. 

Explanation:

5 0
3 years ago
Other questions:
  • A student places a large pot of cold water on a stove and heats it for one minute. Then she takes the pot of water off the burne
    9·1 answer
  • A complete circuit contains two parallel connected devices and a generator for providing the electromotive force. The resistance
    8·1 answer
  • Which cell responds most strongly to a stimulus moving perpendicular to its axis?​?
    13·1 answer
  • The positive muon (?+), an unstable particle, lives on average 2.20×10?6s (measured in its own frame of reference) before decayi
    15·1 answer
  • A 750 kg car is moving at 20.0 m/s at a height of 5.0 m above the bottom of a hill when it runs out of gas. From there, the car
    11·1 answer
  • PLSEAE HELP ME I WILL GIVE BRIANLYEST!!!!
    5·1 answer
  • People living wind farms sometimes object to them because of visual pollution and what other form of pollution?
    15·1 answer
  • A cat with a mass of 5.00 kg pushes on a 25.0 kg desk with a force of 50.0N to jump off. What is the force on the desk?
    7·1 answer
  • Can you please help me on all of these!!!! Please
    6·1 answer
  • What is the acceleration of a train that takes 22 seconds to go from a speed of 73 kilometers per hour to a speed of 45 kilomete
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!