Question

A girl travels around a circular path from point A to point B. the radius of the circular path is 28m. Point B is directly east of point A. Calculate the distance and displacement of the girlImmersive Reader

Answer 1

Answer:

I hope you understand this attachekent

Answer 2

Given:

• A girl travels in a circular path from point A to B.
• Radius = 28 m
• Point B is directly east of point A.

To find:

• Distance
• Displacement

Solution:

As mentioned here, point B is given directly east to point A.

Thus, it can be concluded that point B is located at 180° to point A.

Now, distance is the circular path traversed by the girl exactly.

Thus, distance is equal to half the circumference of the circular path.

$Distance\:travelled\: by\:the\:girl=\pi r$

$Distance\:travelled\: by\:the\:girl=\pi \times 28=\frac{22}{7} \times 28$

$Distance\:travelled\: by\:the\:girl= 88 \:cm$

Displacement will be the shortest distance between the starting point A and the ending point B.

Thus, the displacement of the girl will be equal to the diameter of the circular path.

$Displacement\: od\:the\:girl = diameter\: of \:the \:circular\: path$

$Displacement\: of\:the\:girl= 2\:r$

$Displacement\: of\:the\:girl = 2 \times 28 \:cm$

$Displacement\:of\:the\:girl= 48 \:cm$

Answer:

The distance and displacement of the girl are 88 cm and 48 cm respectively.