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
MaRussiya [10]
3 years ago
12

A car of mass 2000 kg is thrusted forward with an engine force of 2000 N and a total frictional

Physics
1 answer:
PolarNik [594]3 years ago
6 0

Answer:

40.3 m/s

Explanation:

We'll begin by calculating the resultant force.

Resultant force = 2000 – 1000 = 1000N

Next we shall determine the acceleration of the car. This is illustrated below:

Mass of the car = 2000kg

Resultant Force = 1000N

Acceleration =.?

Resultant Force = Mass x Acceleration

1000 = 2000 x Acceleration

Divide both side by 2000

Acceleration = 1000/2000

Acceleration = 0.5m/s²

Finally, we shall determine velocity of the car when it has moved 1000m.

Initial velocity (u) = 25m/s

Acceleration (a) = 0.5m/s²

Distance (s) = 1000m

Final velocity (v) =..?

Applying the formula v² = u² + 2as we can obtain the velocity of the car at 1000m as follow:

v² = u² + 2as

v² = 25² + 2(0.5 x 1000)

v² = 625 + 2(500)

v² = 625 + 1000

v² = 1625

Take the square root of both side

v = √1625

v = 40.3 m/s

Therefore, the speed of the car when it has moved 1000m is 40.3 m/s

You might be interested in
So we were working on some pulley problems but this one has kinda left me scratching my head, please help! My question is for pa
USPshnik [31]

Explanation:

(c) I assume we're looking for mA.

Sum of forces on B in the -y direction:

∑F = ma

mBg − T = mBa

Sum of forces on A in the +x direction:

∑F = ma

T = mAa

Substitute:

mBg − mAa = mBa

mBg − mBa = mAa

mA = mB (g − a) / a

Plug in values:

mA = (5 kg) (10 m/s² − 0.01 (10 m/s²)) / (0.01 (10 m/s²))

mA = 495 kg

The answer key seems to have a mistake.  It's possible they meant mB = 1 kg, or they changed mB to 5 kg but forgot to change the answer.

8 0
3 years ago
What are the two forces involved in an interaction called
natka813 [3]

Answer:These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects.

Explanation:

8 0
3 years ago
If two persons do the same amount of work , they may have different power ? why ? ​
iris [78.8K]

Hey there mate :)

Even if two persons are given the same work load, the speed of the work done gets different by the energy of those persons.

No one is sure that he/she can complete the work within the time. He may or may not.

Also, the physical characteristics makes the work different. If one person has so much power to work all day, the other person may not have.

Therefore, <em>even if two persons do the same amount of work , they may have different power</em><em>.</em>

4 0
2 years ago
Wind erosion can be reduced by _____.
yanalaym [24]
Using land according to its capability. protect the soil surface with some form of cover. control runoff before it develops into an erosive force
4 0
3 years ago
If I keep F constant in F=ma, what is the relationship between m and a?
Jobisdone [24]

Answer:

If F is a constant, we can take f = 1

f = m×a

ma = 1

therefore we can say that force is hence proportinal to the product of mass and acceleration.

6 0
2 years ago
Other questions:
  • Give an example of something moving that is not accelerating
    15·1 answer
  • Describe what happens to atom size as you go from left to right on the periodic table.
    6·1 answer
  • When the net forces equal 0 N, they are which of the following? A. Balanced B. Unbalanced C. A push D. A pull
    13·1 answer
  • Can two people with brown eyes have a blue eyed baby
    12·1 answer
  • What does a halogen atom give off when it gains an electron?
    5·2 answers
  • Which of these objects has the greatest inertia?
    9·1 answer
  • Heeeeeeeeelp please ​
    10·2 answers
  • Which statement is the best interpretation of the ray diagrem shown below
    14·2 answers
  • Both the terms immigration ("moving into a population") and emigration ("moving out of a population") come from the Latin word m
    7·1 answer
  • Please help meee please please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!