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Help me please my teacher requires work!!

An object has a constant acceleration of 2.0 meters per second4. The time required for the object to accelerate from 8.0 meters per second to 28 meters per second is​

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The change needed is from 8 to 28, a change of 20 m/s. At a rate of 2m/s/s it will take 10 seconds for it to happen (2x10=20). I hope this helps.

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