Physics
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 :
- 8 m, 16 m
- 16 m, 8 m
- 16 m, 16 m
- 8 m, 8 m
Motion in One Dimension
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Answer
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
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In the velocity-time graph shown below, the ratio of the distance travelled by the object in the last 2 s and the distance travelled in 7 s is :
