(a) Calculate the distance travelled by the bus in the first 40 s. distance (b) The distance travelled between 40 s and 80 s is 315 m. Calculate the average speed of the bus during the whole 80 s. average speed .m/s (c) Describe the motion of the bus (i) between 40 s and 70 s, (ii) between 70 s and 80 s.
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