Question

(a) A car accelerates from 0 to 30.0 m s-1 in 6.0 seconds, travels at a constant 30.0 m s-1 for 21.0 seconds, and then brakes to a stop in 3.0 seconds.
(i) Draw a velocity-time graph illustrating this motion
(ii) Calculate the acceleration (assumed constant) in each section of the motion.
(iii) Calculate the distance travelled
(iv) Sketch a distance-time graph for the motion
(v) What is 30.0 m s-1 in km/hr?

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