The velocity-time graph given below shows an object moving in a straight line. The displacement and the distance travelled by the object in 6 s will respectively be :

1. 8 m, 16 m
2. 16 m, 8 m
3. 16 m, 16 m
4. 8 m, 8 m

8 m, 16 m

Reason — Displacement = area of 1st rectangle - area of 2nd rectangle + area of third rectangle

= [4 x 2] - [2 x 2] + [2 x 2] = 8 m

Distance = area of 1st rectangle + area of 2nd rectangle + area of third rectangle

= [4 x 2] + [2 x 2] + [2 x 2] = 16 m