A cord is wound round the circumference of wheel of radius r , The axis of the wheel is horizontal and the moment of inertia about it is I . A weight m g is attached to the cord at the end. The weight falls from rest. After falling through a distance h , the square of angular velocity of wheel…

Question

A cord is wound round the circumference of wheel of radius r , The axis of the wheel is horizontal and the moment of inertia about it is I . A weight m g is attached to the cord at the end. The weight falls from rest. After falling through a distance h , the square of angular velocity of wheel will be

Aicharya · Accepted Answer

m g h = 1 2 I &#969; 2 + 1 2 m v 2 v = &#969; r m g h = 1 2 I &#969; 2 + 1 2 &#160; m &#969; 2 r 2 2 m g h I + m r 2 = &#969; 2

A cord is wound round the circumference of wheel of radius r , The axis of the wheel is horizontal and the…

Solution