Question

A small coin is kept at the rim of a horizontal
circular disc which is set into rotation about
vertical axis passing through its centre. If radius
of the disc is 5 cm and us = 0.25, then the angular
speed at which the coin will just slip off at
a) 5 rad/s
b) 7 rad/s
c) 10 rad/s
d) 4.9 rad/s​

Answer 1

Answer:

The correct option- (B) 7 rad/s Explanation:- Read more on Sarthaks.com - https://www.sarthaks.com/419320/small-horizontal-circular-which-into-rotation-about-vertical-axis-passing-through-centre