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17 August, 03:57

A truck travels a constant speed of 20m/s. It then decelerates to rest in ten seconds. Find the total distance travelled by the truck in the 20 seconds.

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  1. 17 August, 04:30
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    In the first 10 seconds it is 200m

    In the next 10 seconds (it is decelerating 2m/s every second) it is 100m

    200m+100m=300m

    300 meters is the answer
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