A body at rest is given an initial uniform acceleration of 8.0m/sec² for 30sec after which the acceleration is reduced to 5.0m/sec² for the next 20sec. The body maintains the speed attained for 60 sec. After which it is brought to rest in 20 sec. Draw the v-t graph to show the movement of the car, use the graph to calculate
i) the maximum speed attained
ii) Average retardation as the body is brought to rest.
iii) total distance travelled during the first fifty sec
iv) the average speed during the same interval as (ii)?
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Asked by Praise on 16th November, 2022
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