Question

A boy walks from A to B and then to C. After reaching C, he takes a u turn to B and at last again a u turn from B to reach C as shown in the figure. Calculate the displacement of the boy in this case.

• A. 45 m
• B. 25 m
• C. 60 m
• D. 50 m

Answer 1

The correct option is A 45 m

Displacement is the shortest distance between the initial and final points. So check the initial and final position of the boy and then measure the shortest distance between them.

In this case, the initial position of the boy is point A. The final point where boy stops is C. This means the shortest path length is from A to C will give displacement which is $45m$.