Question

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

Answer 1

In 40 seconds, he covers the perimeter of the field,i.e., 40m.

So in 140s, he is going to be halfway through the perimeter, that is, 20m.

So, his displacement at 2m 20s= 20m