jazmin7477 jazmin7477
  • 02-11-2018
  • Physics
contestada

a car goes from rest to a velocity of 108 km/h north in 10s what is the car's acceleration in m/s2

Respuesta :

aristocles aristocles
  • 11-11-2018

initial velocity of the car given as

[tex]v_i = 0[/tex]

final velocity is given as

[tex]v_f = 108 km/h[/tex]

as we know that

[tex]1 km/h = 0.277 m/s[/tex]

now we can convert final speed into m/s

[tex]v_f = 108 * 0.277 = 30 m/s[/tex]

now acceleration is rate of change in velocity

[tex]a = \frac{v_f - v_i}{t}[/tex]

[tex]a = \frac{30 - 0}{10}[/tex]

[tex]a = 3 m/s^2[/tex]

so the acceleration of the car is 3 m/s^2

Answer Link

Otras preguntas

How do the Ten Commandments differ from Hammurabi's Code?
The measure of one angle of a right triangle is 12 degrees more than the measure of the smallest angle. Find the measures of all three angles.
what is the date of the Texas annexation and why is it so important?
Question Translate and solve: What number is 132% of 694? Round to the nearest hundredth.
HELP PLS !!!!!!!!!!!!!
In △PKQ, PK = KQ = 12, m∠P = 35º. Find PQ.
What is the value of 2(x + y) – (x – z) if x = 2, y = 1, and z = –3? 1 -4 7 -2
Solve for x: x/z= 4/π
Three friends are making a 400-mile road trip. Jack drove 1/5 of the trip,Steve drove 40% of the trip,and Stan drove the rest. How far did Stan drive?
Is the following sequence geometric? If so, what is the common ratio? 4, 2, 1, 1/2, 1/4 ...