1.

a farmer moves moves along the boundary of a rectangular field ABCD. he takes 4 minutes to travel across each side. is the motion of this farmer uniform or non uniform? find his average speed over one complete round of the field.

Answer»

Total DISTANCE 80+40+80+40=240
total time. 4+4+4+4min=16
average speed. 240/ 16
average speed. 15 m/ MIN



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