Question

The angular frequency of a fan increases
from 30 rpm to 60 rpm in its. A dust
particle is present on the blades at a
distance of 20 cm from axis of rotation. The
net acceleration of dust particle at the end
of pie is​

Answer 1

Explanation:

Final velocity after πs is,

v= 60×2π×0.2/60

v=0.4π

Net acceleration after πs is,

a= v ^2/r

a= (0.4π) ^2/2

a= 9.87×0.16/0.2

a=7.9m/s ^2