Question

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Q) An object has moved through a distance . Can it have zero displacement ? If yes , support your ans with an example.
Q) A farmer moves alind the boundary of a square field of side 10 m in 4s . What will be the magnitude of displacement of the farmer at the end of 2 min 20 sec from his initial position ?



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Answer 1

Answer:

Explanation:yes it can have zero displacement. For example a boy is walking from point a in a circulalar field. after 1 round he reaches the same point a.

Displacement is the shortest distance covered so if you statr from a same point and return back to the same point then your displacement will be zero itself.....

HOPE THIS HELPED YOU!!!!

Answer 2

(1)If yes, support your answer with an example. Answer: Yes, zero displacement is possible if an object has moved through a distance. Suppose a ball starts moving from point A and it returns back at same point A, then the distance will be equal to 20 meters while displacement will be zero.

(2) Total distance 10m in 40 sec. Total time taken by the farmer = 2 min 20 sec. =140 seconds. Total rounds completed= 140/40=3.5 rounds That means if the farmer starts from point A of the square field, he reaches point C. Therefore, displacement is AC. Assume ABC is a right angled triangle. Therefore, AC2= AB2 +BC2 AC2= (10)2 +(10)2 AC2= 100+100 AC2=200 AC = (200)1/2 AC= 10× (2) ½

hope this answer helpful u