Question

You travel 5km to your school and finding it closed, come back home. What is (i) the distance traveled by you (ii) your final displacement?

Answer 1

Answer:

Given:-

distance travelled by the body = 5 km

A. T. Q

1. after reaching near the school the body moves back to home, therefore after going back to home distance travelled by body = (5+5) km =10km
2. the body start from the home and come backs again to home, therefore the displacement must be zero because the initial and final position of the body are same.

Explanation:

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Answer 2

(i) Distance is defined as the total path travelled by the body.

Since, the distance travelled by me from home to school is 5 km and then I returned back to home using the same pathway.

So, the total distance travelled by me is 10 km (5+5).

(ii) Displacement is defined as the shortest path travelled between the initial and final points.

5 km from home to school. Here, initial point is my home. Again, 5 km is travelled by me from school to home. So, the final point is again home.

Therefore, the final displacement is 0 km.

Cases where displacement is zero:

• If the initial and final positions or points are same (as discussed in above case).
• If there is no distance covered by the body.