Question

59. A coin placed on a rotating gramophone disc remains at rest, when it is at a distance of 9 cm
from its center. The angular velocity of the disc is then tripled. At what distance from the center,
the coin should be placed, so that it will remain at rest?
(A) 2 cm
(B) 1 cm
(C) 3 cm
(D) 6 cm​

Answer 1

Answer:

$\huge\boxed{\fcolorbox{black}{pink}{Hi mate!}}$

A coin placed on a rotating gramophone disc remains at rest, when it is at a distance of 9 cm

from its center. The angular velocity of the disc is then tripled. At what distance from the center,

the coin should be placed, so that it will remain at rest?

(A) 2 cm

(B) 1 cm

(C) 3 cm

(D) 6 cm✔