A farmer moves along the boundary of a rectangle field ABCD as shown in the figure. He takes 4 minutes to travel across each side. ls the motion of this farmer uniform and non uniform ? find his average speed over one complete round of the filed .
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the motion of the farmer is non uniform because he is travelling 40 m in 4 min i.e. he travels with a speed of 1/6 m/s and then travelling 80 m in 4 min i.e., he moves with a speed of 1/3 m/s
He's speed is increasing and decreasing thus, it is not a uniform motin
average speed of the farmer = total distance
------------------------
total time taken
time is in min
firstly convert it into second
16x60
960s
average speed = 40+80+40+80
-----------------------
960
=0.25 m/s
......ok
...is it helpful
Explanation:
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