Question

A boy start from his house and travels 5 km to reach the market. After purchasing the book he return to his house. The displacement of the boy is​

Answer 1

Answer:

Final position - initial position =s

5-5=0

Answer 2

Answer:

the displacement of a boy is zero.

Explanation:

Given: A boy starts from his house(initial point).

           travels 5 km: distance.

             returns home(final point).

• Distance is the total length of path travelled.
• Thus, the distance travelled by the boy is

                                                             $d= 5+5\\ =10 km$

• Displacement is the shortest length between two points, it is given as:
• Displacement (s)= final point- initial point.
• The boy starts his journey from his house and ends at his house.
• So initial and final positions are same.
• So displacement becomes (0) zero.

Hence, the displacement of a boy is zero.