Question

A farmer moves along the boundary of square feet of side 10 metre in 40 seconds what will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from its initial position

Answer 1

here the farmer covers 40m distance in 40s as it is clear from the statement hence displacement magnitude is 20 m total seconds are 140s displacement is zero first 120s in next 20 s he will move 20 m you can also prove