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Physics, 19.10.2020 14:01 kalebrayburn62
a car travelling at a constant speed of 30m/s for 20sec was suddenly decelerated when the driver sighted a pot hole. it took the driver 6s to get to the pot hole with reduced speed of 18m/s. he maintain the steady speed for another 10sec to cross the pot hole. the brakes were then applied and the car came to rest 5sec later. (a) draw the v-t graph for the journey (b) calculate decelaration during the last 5sec of the journey (c) calculate total distance covered
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