A particle covers half of the circle of radius r. Then the displacement and distance of the particle are respectively

Question

A particle covers half of the circle of radius r. Then the displacement and distance of the particle are respectively (A) 2π r, 0 (B) 2r, π r (C) (π r/2), 2r (D) π r, r

Tardigrade Admin · Accepted Answer

When a particle cover half of circle of radius r, then displacement is AB = 2r Distance = half of circumference of circle = π r

Q. A particle covers half of the circle of radius $r$ . Then the displacement and distance of the particle are respectively

$2 π r, 0$

$2 r, π r$

$\frac{π r}{2}, 2 r$

$π r, r$

When a particle cover half of circle of radius $r$ , then displacement is $A B = 2 r$
Distance = half of circumference of circle $= π r$

Q. A particle covers half of the circle of radius r. Then the displacement and distance of the particle are respectively

2πr,0

2r,πr

2πr​,2r

πr,r