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Magnitude of average acceleration = (change of speed) divided by (time for the change)

Average 'A' = (16 - 6) / 240 seconds = 10/240 = 1/24 meter per second2

-- That's the average over the 4 minutes. We don't know anything about the

value of the acceleration at any particular instant during the 4 minutes..

-- We're working entirely with scalars ... speed, not velocity, and magnitude of

acceleration ... since we don't know anything about the car's direction at any

point in time during the whole event.

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Q: A car has a velocity that changes from 6 meters per second to 16 meters per second in 4 minutes what is the average acceleration of the car?
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