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2. A truck is travelling at 80 km/h when the driver notices a speed limit sign for the town ahead. She slows down to a

2. A truck is travelling at 80 km/h when the driver notices a speed limit sign for the town ahead. She slows down to a speed of 50 km/h. While slowing down, she travels a distance of 125 m. Draw a sketch of the situation. (a) Calculate the acceleration of the truck. (b) How long did it take the truck driver to change the speed of the truck

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