0538485
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A car starting at 25 m/s applies its brakes, and 10 seconds later it slows down to a
velocity of 5 m/s. What is the acceleration of the car?

Respuesta :

Answer:

-2m/s²

Explanation:

Given parameters:

Initial velocity of the car  = 25m/s

Time taken  = 10s

Final velocity  = 5m/s

Unknown:

Acceleration of the car  = ?

Solution:

Acceleration is the rate of change of velocity with time.

It is mathematically expressed as:

 Acceleration  = [tex]\frac{Final velocity - Initial velocity}{time}[/tex]  

  Acceleration  = [tex]\frac{5 - 25}{10}[/tex]   = -2m/s²