Question

Calculate the distance and displacement of a circle the radius is 10cm

Answer 1

Answer:

Distance = pie.r

so distance =10pie

Displacement =r+r

=2r

so displacement =2(10)

I.e 20

Answer 2

Answer:

The entire number of metres travelled is referred to as distance.

The net change in metres  is known as displacement.

Explanation:

• The particle (body) travels around the outside of a r=10 half-circle.
• p=2r is the circumference of the circle.
• The straight path from A to B has a diameter of 2r=20 metres.
• This is the net displacement.
• The total distance travelled is half the diameter of the circle. The distance is d=p2=r=10.
• The phrase "displacement" refers to a change in the position of an object. It is a magnitude and direction vector quantity. It's shown as an arrow pointing from the starting position to the end point.
• When an item moves from position A to position B, for example, its position changes. A shift in an object's position is referred to as displacement.