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09-02-2022
Physics

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If a car is moving +14m/s is to stop within 2 seconds, what must the car's acceleration be?

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09-02-2022

Acceleration is -7 m/s²

Explanation:

initial velocity (u) = 14 m/s

since it's gonna stop,

final velocity (v) = 0m/s

time taken(t) = 2 seconds

now,

a = (v-u)/t

or, a = (0-14)/2

or, a = -14/2

a = -7m/s²

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