Question

An athlete jogs around a circular track of radius 21 m. The distance and displacement of the athlete at the end of half a round is​

Answer 1

Explanation:

Given An athlete jogs around a circular track of radius 21 m. The distance and displacement of the athlete at the end of half a round is

• Given  
• Radius of the circular track = 21 m
• We need to find distance and displacement of the athlete at the end of half round.
• We have distance covered in one round will be the circumference of the circle.
• So distance covered in half round will be half the circumference of the circle.
•      Circumference of circle = 2πr
•      Circumference of half or semicircle will be = πr
•                                           So Distance = 22/7 x 21
•                                                                = 22 x 3
•                                                                   = 66 m
• Therefore distance covered in half round is 66 m

Reference link will be

https://brainly.in/question/17864862