emiliannaesqueda emiliannaesqueda
  • 16-09-2020
  • Physics
contestada

A train can speed up at a uniform rate of 0.15 m/s2. In what minimum distance can
it attain a speed of 25 m/s if it is starting from rest?

Respuesta :

Muscardinus Muscardinus
  • 23-09-2020

Answer:

d = 2083.33 m

Explanation:

Given that,

Acceleration of the train, a = 0.15 m/s²

The initial speed of the car, u = 0\

Final velocity, v = 25 m/s

We need to find the minimum distance covered by the train. Let it is d. Using third equation of kinematics as follows :

[tex]v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}\\\\d=\dfrac{(25)^2-0}{2\times 0.15}\\\\d=2083.33\ m[/tex]

So, the minimum distance is 2083.33 m

Answer Link

Otras preguntas

What makes john decide to go to the place of the gods? in "by the waters of babylon" a. he has a dream. b. his father orders it. c. it is the custom of his p
24. Element X has five valence electrons, element Y has one valence electron, and element Z has one valence electron. Which two of these elements are most likel
The function d(x)=1375-110 represents the distance a high speed train is from its destination after x hours. How long does the train travel before reaching its
Which of the following is one of the effects of fratricide?
Some facts about Mesopotamia please?
Find all the solutions of each equation by factoring. x^4 14x^2-32=0
Help with this simple question please
How is one-point perspective used in paintings
HELP HELP HELP HELP PLS
What is the decimal form of 8 and 39/40