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

Respuesta :

6 m/s ^2

Explanation:

Acceleration: the rate of change of velocity per unit of time.

a = (v − u) /t

a = (22 m/s − 4 m/s )/3s = 6 m/s ^2

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