A car accelerates at a steady rate from 0 to 108km per hour in 30 seconds, travels at a constant speed for one minute, and then brakes at a constant rate to stop in 10 seconds.
i) Draw a velocity-time graph with velocity (vertical axis) in m/s and
time (horizontal axis) in seconds.
ii) Sketch a displacement-time graph for the motion.

Question

A car accelerates at a steady rate from 0 to 108km per hour in 30 seconds, travels at a constant speed for one minute, and then brakes at a constant rate to stop in 10 seconds.
i)	Draw a velocity-time graph with velocity (vertical axis) in m/s and 
	time (horizontal axis) in seconds.
ii)	Sketch a displacement-time graph for the motion.

anonymous · Answer

108kmph= 30m/s(meter per second)
|dw:1323136828843:dw| x-axis is velocity(m/s), y axis is time(s), area covered by graph will be its displacement(x-axis value times y-axis value).