My father went to a shop from home which is located at a distance of 250 m. Class 9

My father went to a shop from home which is located at a distance of 250 m. Class 9

Revise, Reflect, Refine (Page 68-70)

Question 1.

My father went to a shop from home which is located at a distance of 250 m on a straight road. On reaching there, he discovered that he forgot to carry a cloth bag. He came home to take it, went to the shop again, bought provisions and came back home. How much was the total distance travelled by him? What was his displacement from home? Class 9

Answer:

Let Home = H and Shop = S. Distance HS = 250 m.

Journey:

1. Home → Shop: 250 m

2. Shop → Home: 250 m (came back to get the cloth bag)

3. Home → Shop: 250 m (went again)

4. Shop → Home: 250 m (came back home)

Total distance travelled = 250 + 250 + 250 + 250 = 1000 m

Displacement from home = 0 m

This is because displacement is the net change in position between the starting and ending points. Since he started and ended at home, the displacement is zero.