Answered

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A roller coaster is moving at 25 m/s at the bottom of a hill. Three seconds later it reaches the top of the hill moving at 10 m/s. What was the acceleration of the coaster?

Sagot :

Answer:

Acceleration = 5 m/s2

Explanation:

As, acceleration is the rate of change of velocity per unit time, we have the formula;

acceleration = change in velocity / change in time

a = 25 m/s - 10 m/s / 3 seconds

a = 15 m/s / 3 seconds

a = 5 m/s.s

a = 5 m/s2

So, the acceleration of the roller coaster is 5 m/s2

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