Question

1. A body moving on a circular path of radius 28 cm starts from point A and returns back to the same point. Calculate distance and displacement.

Answer 1

Here, given that a body moving a circular path of 28 cm starts from point A & returnes back to point A.

We have to find distance covered by body & displacement of body.

Solution :-

As here, the body starts from point A and returns back to point A.

So, the body comes back to its initial point.

As we know, displacement is the shortest length of the starting point to ending point. As here the starting point = ending point.

∴ Displacement of body = 0

Now finding distance covered by body :

We know that,

◗ Distance covered = Circumference of path.

◗ Circumference of circular path = 2πr

Putting values we get :

⇒ Distance covered = 2 × 22/7 × 28

= 2 × 22 × 4

= 176 cm

Therefore,

∴ Distance covered by body = 176 cm & displacement of body = 0 .

Answer 2

Step-by-step explanation:

Given -

• Radius of the circular path 28 cm

To Find -

Distance and Displacement

As we know that :-

• Area of circle = 2πr

» 2 × 22/7 × 28

» 2 × 22 × 4

• » 176 cm

And

As we know that :-

• Displacement is the shortest distance between initial position and final position.

So,

here Displacement is Zero(0), because the body returns back to the same point.

Hence,

The Distance is 176 cm

and

Displacement is 0

Note :-

Figure in the attachment

(NOT TO SCALE)