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 distance but his displacement is zero. Justify your answer.

Answer 1

Answer:

yes the boy is right.

➡️ the displacement is the shortest path.

➡️ the displacement can be negative or zero but distance cannot.

here , the boys returns to the starting point therefore the distance is 2km but the displacement is 1km - 1km = 0 km.

therefore, it is zero displacement.

Answer 2

Answer:

Because displacement can be zero . In a circular ground if we start from a point and move 2km and come back to our initial position then distance covered is 2km but displacement is 0 because displacement is the shortest distance between the initial position and the final position