Question
The velocity-time graph of a body moving in a straight line is shown in the Fig. Find the displacement and distance travelled by the body in 6 seconds. [Ans. : 8 m, 16 m.]
Solution
(a) Displacement = Area under the graph
= 4 × 2 – 2 × 2 + 2 × 2
=8 – 4 + 4 = 8 m
(b) Distance = Area under the graph
= 4 × 2 + 2 × 2 + 2 × 2
= 8 + 8 + 8 = 24 m