Question

A cyclist travels ¾ of a circular track from A to B as shown in figure. The radius of the circle track is 400 m. What is the displacement

Answer 1

REFER TO THE ATTACHMENT ❣️

Answer 2

Answer:

Known Terms:-

r = Radius

s = Distance

Given:-

Radius of the circular track = 400 m

Distance traveled by cyclist = $\frac{3}{4}$ of a circular track.

To Find:-

Displacement by the cyclist

Formula to be used:-

Circumference that is 2πr

Solution:-

Circumference of a $\frac{3}{4}$ circle

= $\frac{3}{4}$ × 2πr

= $\frac{3}{4}$ × 2 × $\frac{22}{7}$ × 400

= 1885.71 metres

Hence, displacement by cyclist is 1885.71 m.