Study the distance-time graph given below for a car to travel to
certain places and answer the questions that follow.
(a) How far does the car travel in 2 hours?
(b) How much time does the car take to reach R?
(c) How long does the car take to cover 80 km?
(d) How far is Q from the starting point?
(e) When does the car reach the place S after starting?