Question

For the velocity time graph shown in the figure, the distance covered by the body in the last two seconds of its motion is what fraction of the total distance covered in all the seven seconds?

Answer 1

Answer:

1/4

Explanation:

required fraction = (area under curve b/w 5-7 sec) / (area under curve b/w 0-7 sec)

= (1/2 × 2 × 10) / (0 + 1/2 × 2 × 10 + 2 × 10 + 1/2 × 2 × 10)

= 10 / ( 10 + 20 + 10)

= 1/4