Question

NUM. A particle is moving along a circular path of radius r, when it makes half a rotation, the ratio b/w its
displacement and distance is
A)
$\pi$

B)
$30\pi$

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

D)
$\frac{\pi}{2}$


​

Answer 1

Explanation:

displacement when it makes half a rotation is diameter that is 2 r.