Question

a farmer moves along the boundary of a square field of side 20 metre in 80 second what will be the magnitude of displacement of the farmer at the end of 3 minutes 20 seconds from his initial position

Answer 1

Explanation:

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.