Respuesta :

abidemiokin

Answer:

-5m/s²

Explanation:

Acceleration is defined as the change of velocity of a body with respect to time. Mathematically;

Acceleration a = change in velocity/time t

Where change in velocity = final velocity v - initial velocity u

acceleration a = final velocity v - initial velocity u/time t

a = v-u/t

If the speed of a car is decreasing uniformly from 35 m/s to 15 m/s in 4s then;

Initial velocity of the car = 35m/s

Final velocity of the car = 15m/s

Time taken = 4s

Substituting this datas in the formula, we can get the acceleration of the car;

Acceleration = 15-35/4

Acceleration = -20/4

Acceleration = -5m/s²

Negative acceleration shows that the car is decelerating

Lanuel

The magnitude of the car's acceleration is equal to -5 [tex]m/s^2[/tex]

Given the following data:

  • Initial velocity = 35 m/s
  • Final velocity = 15 m/s
  • Time = 4 seconds

To determine the magnitude of the car's acceleration:

Mathematically, acceleration is given by the formula;

[tex]Acceleration = \frac{V\;-\;U}{t}[/tex]

Where:  

  • V is the final velocity.
  • U is the initial velocity.
  • t is the time measured in seconds.

Substituting the given parameters into the formula, we have;

[tex]Acceleration = \frac{15\;-\;35}{4}\\\\Acceleration = \frac{-20}{4}[/tex]

Acceleration = -5 [tex]m/s^2[/tex]

Read more on acceleration here: https://brainly.com/question/24728358