Acar traveling at 28 m/s starts to decelerate steadily. it comes to a complete stop in 13 seconds. what is its acceleration?

Acceleration = (change in speed) / (time for the change)

change in speed = (speed at the end) minus (speed at the beginning)

change in speed = (zero) minus (28 m/s) = -28 m/s

Acceleration = (-28 m/s) / (13 sec)

Acceleration = -2.15 m/s²

in this image, you can see solar radiation going through ocean water.

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