Question

a persoj runs one round on a circular track of radius 10m calculate his displacement and distance covered by him​

Answer 1

Answer:

Distance travelled = 62.8 m

Displacement = 0

Explanation:

As per the provided information in the given question, we have :

• A person runs one round on a circular track of radius 10m.

We are asked to calculate the distance travelled and the displacement of the person.

Let us say that the person starts from point A and according to the question, he takes one round and then again he will come back to point A.

Calculating distance travelled :

Distance travelled is the total length of the path covered by the body. As, it takes one round of a circular track, so the distance travelled will the circumference of the circular track.

⇒ Distance travelled = Circumference of the track

⇒ Distance travelled = 2πr

⇒ Distance travelled = (2 × 3.14 × 10) m

⇒ Distance travelled = 62.8 m

∴ Distance travelled by the person is 62.8 m.

Calculating displacement :

Displacement is the shortest distance from initial position to final position. And, when the body comes back to its initial position after covering certain distance, then its displacement is 0.

Here, the the initial position of the person is A. He comes back to point A again after covering some distance. So, the displacement is 0.

⇒ Displacement = 0

∴ Displacement is 0.