Question

An athlete completes half around of a circular track of radius R then the displacement and the distance covered by the athlete are

Answer 1

Answer:

displacement = 2r

distance =

$\pi r$

Answer 2

Answer:

● Radius of the circle = R

according to the question.....

the athlete cover half of the circular track

☆ therefore ,,

Distance = half of the circumference of the circle

●Circumference of the circle =

$2\pi \: r$

hence,

distance =

$2\pi \: r \div 2$ = pi×R

Displacement = diameter of the circle

● Diameter = 2R

hence,

Displacement = 2R