Question

19. Identify the vectors quantities in the following i) Velocity ii) Acceleration iii) Volume 2. An athlete runs along a circular track of radius 84 m and takes 20 iv) Speed
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Answer 1

Answer:

ii) Acceleration is a vector quantity.

Explanation:

2. An athlete runs along a circular track of radius 84 m and takes 20

His displacement will be equal to the diameter of the circle, i.e.2x 20m=40 matter covering the full round his displacement is zero as he is coming back to his original position.

But covering half the round he is located at a distance of circle diameter from his starting point.

So, displacement is 40m.