A truck on a straight road starts from rest, accelerating at 2.00ms2 until it reaches a speed of 13.0ms. Then the truck travels for 16.0s at a constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.00s? (a). How long is the truck in motion? (b). What is the average velority of the truck for the motion described?

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