Question

A ceiling fan is rotating about its own axis with
uniform angular velocity w. The electric current
is switched off then its angular velocity is reduced
to as it completes 30 rotations. The number of
rotations further it makes before coming to rest is
(a) 18
(b) 12
(c) 9
(d) 24​

Answer 1

Answer:

18

Explanation:

A ceiling fan is rotating about its own axis with

uniform angular velocity w. The electric current

is switched off then its angular velocity is reduced

to as it completes 30 rotations. The number of

rotations further it makes before coming to rest is