Question

The speed – time graph for a car is shown in Figure:

(a) Find how far does the car travel in the first 4 seconds. Shade the area on the graph that represents the distance travelled by the car during the period. 

(b) Which part of the graph represents uniform motion of the car? 

Answer 1

(a) Distance covered = area under speed – time 

⇒ Distnce = 1/ 2 × 4 × 6 = 12 m 

Shaded area representing the distance travelled is as follows:

(b) After 6 seconds the car moves in uniform motion (at a speed of 6 m/s)