Mohan and Virender were discussing the following problem. A boy hits a football high up into the air. He runs and catches the football before it hits the ground. Which of the two, the boy or the football has had greater displacement ? Mohan was of the opinion that the football has travelled first into the air and then back, while the boy has run straight. Thus, the boy has lesser displacement. Virender told him that it is not true. Both the boys and the ball have covered the same displacement. Raman was hearing them. He came over from his seat and sorted the matter between them.
Q. Mohan and Virender were discussing the following problem. A boy hits a football high up into the air. He runs and catches the football before it hits the ground. Which of the two, the boy or the football has had greater displacement ? Mohan was of the opinion that the football has travelled first into the air and then back, while the boy has run straight. Thus, the boy has lesser displacement. Virender told him that it is not true. Both the boys and the ball have covered the same displacement. Raman was hearing them. He came over from his seat and sorted the matter between them.
(a) Who do you think is right, Mohan or Virender ?
(b) What are the values which you see in Raman ?
Ans. (a) Both have undergone the same displacement, although the distance travelled by the football is greater than the distance travelled by the boy. This is because displacement is the shortest distance between two points.
(b) Concern for his peer and knowledge of his subject.
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