ABC is a right angled triangular plate of uniform thickness. The sides are such that AB > BC as shown in figure. I1 , I2, I3 are moments of inertia about AB, BC and AC respectively. Then which of the following relations is correct ?
O is the centre of an equilateral triangle ABC. F1, F2 and F3 are three forces acting along the side AB, BC and AC as shown in figure. What should be the magnitude of F3. So that the total torque about O is zero ?
( F1 + F2 ) /2
( F1 - F2 )
(F1 + F2 )
2 (F1 + F2 )
A spherical ball rolls on a table without slipping. Then the fraction of its total energy associated with rotation is