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A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average acceleration?

plz, show the equation.

Respuesta :

quasarJose

Answer:

6m/s²

Explanation:

Given parameters:

Initial velocity  = 4m/s

Time  = 3s

Final velocity  = 22m/s

Unknown:

Average acceleration  = ?

Solution:

Acceleration is the rate of change of velocity with time taken.

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

Acceleration  = [tex]\frac{22 - 4}{3}[/tex]    = 6m/s²

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