Question

If a car moves from A to B covering a distance of 10 kilometres and returns to its initial position. calculate the distance and displacement of the car

Answer 1

Answer:

Distance = 20 km

Displacement = 0 km

Explanation:

Given:

• Distance of 10 kilometres is covered while going A to B

• The car again returns back to its initial position

To find:

• Distance covered by the car

• Displacement covered by the car

Distance :

As the car goes and comes back to the initial position, the distance will be double of going

Distance = 10 km + 10 km

Distance = 20 km

The total distance covered is equal to 20 km

Displacement :

As the car goes and comes back to the initial position again the Displacement will be equal to 0.

Displacement = 0 km

The total displacement is equal to 0 km

Answer 2

Total distance is 20 km & total displacement is 0.

Solution

Figure :-

10km

➡

A -------------------- B

⬅

10 km.

As the car moves from A to B then it comes back to its initial point. So that means the car has traveled the same distance twice.

⇒ Total distance = AB + BA

⇒ Total distance = 10 + 10

⇒ Total distance = 20 km.

∴ Total distance covered = 20 km.

As we know displacement is shortest distance b/w two points.

Now again as the car goew from A to B then comes back to its initial point i.e. A.

So displacement will be 0.

⇒ Total displacement = AB - BA

⇒ Total displacement = 10 - 10

⇒ Total displacement = 0

∴ Total displacement of car = 0