1)

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


A) $2\pi r, 0$

B) $2r, \pi r$

C) $\frac{\pi r}{2}$, 2r

D) $\pi r, r$

Answer:

Option B

Explanation:

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

Distance = half of circumference of circle = πr