contestada

A racecar driver steps on the gas, and his racecar travels 20 meters in 2 seconds starting from rest. The acceleration of the racecar is:_______

Respuesta :

samuelonum1

Answer:

2.5m/s^2

Explanation:

Step one:

given

distance = 20meters

time = 2 seconds

initial velocity u= 0m/s

let us solve for the final velocity

velocity = distance/time

velocity= 20/2

velocity= 10m/s

[tex]v^2=u^2+2as\\\\10^2=0^2+2*a*20\\\\100=40a[/tex]

divide both sides by 40

[tex]a= 100/40\\\\a=10/4\\\\a= 5/2\\\\a= 2.5m/s^2[/tex]

The acceleration of the racecar is  [tex]10 m/s^2[/tex]

Given that,

  • A racecar driver steps on the gas, and his racecar travels 20 meters in 2 seconds starting from rest.

The calculation is as follows;

[tex]L = V_1T + aT^2\div 2\\\\20 = (0)(2) + a(2)^2\div 2[/tex]

a = 10 m/s^2

Learn more:

https://brainly.com/question/1504221?referrer=searchResults

Otras preguntas