Question

A boy starts from a point A, travels to a point B at a distance of 3 km from A and returns to A If he takes two hours to do so, his displacement is

()3 km/h

(b) zero

(c) 2 km/h

(d) zero

Answer 1

Displacement is defined as the shortest distance from the initial position to the final position, taking into account the direction. In this case, the boy starts at point A, travels to point B (which is 3 km away), and then returns to point A.

Since he starts and ends at the same point (A), his displacement is zero, regardless of the distance he traveled.

Thus, the correct answer is:

(b) zero.