Question

a person moves along the boundary of a square park of side 10 m in 40 second.what will be the magnitude of displacement of the person at the emd of 3 minutes

Answer 1

There are 180 seconds in 3 minutes if he can move 10m in 40 sec the he would be able to move 45m in 180 sec .As it is a square park he would come back to his starting if walk 40m .So his magnitude of displacement is 5m