Question

the school of a boy from his home is 1km to the east. when he reaches back home he says that he had travelled 2km diatance but his displacement is zero l. justify your answer

Answer 1

Because displacement is the shortest distance between you and the destination. So the displacement is Zero

Answer 2

displacement is the distance between original position and final position.. when the boy returns home, he has reached his initial position. so no displacement..
by the distance traveled Whil going and coming back from school is 2km