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15.12.2020 •
Mathematics
The Diagram shows the speed time graph of an object which travels at a constant speed of 36m/s^2 and then slows down at a rate of 12m/s^2, coming to a rest at time t seconds.
(i) Find the value of t
(ii) Given the distance travelled when the object is slowing down is 54m, find the average speed for the whole journey.
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