kavadrionp35 kavadrionp35
  • 03-11-2020
  • Chemistry
contestada


A car is moving at a velocity of 75 m/s and comes to a complete stop
over 15 seconds. What is the cars acceleration?

Respuesta :

quasarJose
quasarJose quasarJose
  • 03-11-2020

Answer:

The acceleration of the car is  -5m/s²

Explanation:

Given parameters:

Initial velocity  = 75m/s

Final velocity  = 0m/s

Time  = 15s

Unknown:

Acceleration of the car = ?

Solution:

Acceleration is the rate of change of velocity with time;

Mathematically;

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

Insert parameters and solve,

   Acceleration  = [tex]\frac{ 0- 75}{15}[/tex]   = -5m/s²

The acceleration of the car is  -5m/s²

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