Question

a farmer moves the boundary of a square field of side 10m in 40 sec.
what will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds ..

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Answer 1

Farmer takes 40 s to move along the boundary. Thus, after 3.5 round farmer will at point C of the field. Thus, after 2 min 20 seconds the displacement of farmer will be equal to 14.14 m north east from initial position.

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