A sprinter starts from rest and accelerates for 5s. He then travels at a constant velocity for 10s. Finally he slows down to a stop in 5s. Draw a distance time graph to represent his motion.
I cant draw it here.
the first five seconds is a upward sloping parabola, the next 10 sec is a linear line increasing with contant slope, the lasta 5 sec is a parabola sloping downwards