Chapter 07 Motion Questions-01
Questions
1. An object has moved through a distance. Can it have zero displacement? If yes, support your answer with an example.
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Answer
Yes, an object can have zero displacement even when it has moved through a distance.This happens when final position of the object coincides with its initial position. For example, if a person moves around park and stands on place from where he started then here displacement will be zero.
2. A farmer moves along the boundary of a square field of side
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Answer
Given, Side of the square field
Therefore, perimeter
Farmer moves along the boundary in 40 s.
Displacement after
Since in
Therefore, in 1s distance covered by farmer
Therefore, in 140s distance covered by farmer
Thus, after 3.5 round farmer will at point
Therefore. Displacement
Thus, after 2 min 20 seconds the displacement of farmer will be equal to
3. Which of the following is true for displacement?
(a) It cannot be zero.
(b) Its magnitude is greater than the distance travelled by the object.
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Answer
None of the statement is true for displacement First statement is false because displacement can be zero. Second statement is also false because displacement is less than or equal to the distance travelled by the object.
