The driver of a car travelling with velocity `v` on a road suddenly sees a broad wall in
Channel: Doubtnut
Date: 2020-07-26

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?ii)What value do you learn from this experience?