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A farmer moves along the boundary of a square field of side 10 m in 40 seconds what will be the magnitude of displacement of the farmer at the end of 2

minutes 20 seconds from his initial position?



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2 minutes 20 second = 2×60 + 20 = 140 seconds
In 120 seconds, he would have completed 3 rounds and would be at the starting point. In 20 minutes he will cover half the boundary.

If you know the starting point(which you have not provided), you can find the displacement by (measuring the length of the line joining the starting point and current position).

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