Question

Suppose our school is $1km$ away from our house, and we go to school in the morning, and in the afternoon we come back. Then, the total displacement for the entire trip is __________________

Answer 1

Explanation

1. Displacement of an object is defined as the vector distance between the initial and the final position.
2. So displacement is a vector quantity.
3. It is has both magnitude and direction.
4. Since we return to the same position from where we started so there is no change in position.
5. So the vector distance between the initial and final position is $0$
6. So the displacement is $0$

Hence, the answer is $0$.