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
serious [3.7K]
3 years ago
10

What must be the acceleration of a train in order for it to stop 12 m/s in a distance if 541 m

Physics
1 answer:
earnstyle [38]3 years ago
3 0

Answer:

The acceleration of the train must be - 0.133 m/s²

Explanation:

Lets explain how to solve the problem

A train in order for it to stop 12 m/s in a distance if 541 m

That means the initial velocity of the train is 12 m/s

Its final velocity is zero (stop)

The distance it covers is 541 m

We want to find its acceleration

The acceleration will be negative quantity because the train reduced its

velocity from 12 m/s to zero

We need rule contains velocity, acceleration and distance

So we will use ⇒<em> v² = u² + 2as</em>, where v is the final velocity, u is the

initial velocity, a is the acceleration and s is the distance

v = 0, u = 12 m/s, s = 541 m

Substitute these values in the rule

(0)² = (12)² + 2(a)(541)

0 = 144 + 1082 a

Subtract 144 from both sides

-144 = 1082 a

Divide both sides by 1082

- 0.133 = a

<em>The acceleration of the train must be - 0.133 m/s²</em>

You might be interested in
A man inside an insulated metallic cage does not receive shock when the cage is highly charge .explain.
Luba_88 [7]

A man inside an insulated metallic cage does not receive shock when the cage is highly charged because the whole charge reside on outer surface of the cage.

If the cage was a non-conductive cage, then the current cannot pass through the cage so it cannot affect the person in the cage.

For example- If you are seated in a car (metal body) and the car is hit with lightning, it is very unlikely that the person in the car would be hit with the lightning.

5 0
3 years ago
Choose one of these three people and write a letter to them to express your concerns about the events of 01/06/21
Mashcka [7]
Bro I didn’t put nothing
6 0
3 years ago
To increase the gravitational force between the two objects above, I could
egoroff_w [7]

Answer:

Option A

Explanation:

4 0
3 years ago
If i try to fail and succeed which one did I do
Novay_Z [31]
You've failed because you failing becomes a statement rather than it becoming fact or what actually happened. 
7 0
3 years ago
What makes music different from noise?
Zepler [3.9K]

the answers going to be A

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these actions is an example of chemical weathering? A. Freezing water widens the cracks in rocks B. plant roots force t
    12·1 answer
  • Which of the following is an example of a speed? O A. -5 m/s2 west O B. 2m/s C. 2 m/s east O D. 3 m/s south
    14·1 answer
  • Which property is expressed in distance units?
    9·1 answer
  • What is mass ?<br> Please help
    10·2 answers
  • How much force does it take to accelerate a 2,000-kg car at 4 m/s
    6·1 answer
  • 1.Why is it important to accurately predict possible formation and path of a hurricane?
    13·1 answer
  • Which is a form of energy that can move from a hot place to a cooler place, or the transfer of energy from one body to another?
    14·1 answer
  • Question 1 of 11
    6·2 answers
  • Fffffrrrrreeeeee points you can have them!
    5·2 answers
  • F. If heat could flow to the container, how would the final temperature be affected?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!