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The driver of a car travelling with velo...

The driver of a car travelling with velocity `v` on a road suddenly sees a broad wall in front of him at a distance `r`. He has two alternatives: to turn sharply or a brake instantly. The passenger who is a professor of physics, advises him to brake to avoid collision.
Read the above passage and answer the following questions:
(i) How is the suggestion from Professor of Physics justified?
(ii)Does the suggestion work really?
(iii)What value do you learn from this experience?

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