Question

A farmer moves along the boundary of square field of side 10m in 40s .What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from its initial position?

Answer 1

Explanation:

he covers 10m in 40s

then in I s he covers 10/40m

in (2×60+20=140)s he covers =10/40×140=37m

then the displacement is ={40-37}m=3m