The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is_________________?
The C.G. of a plane lamina will not be at its geometrical centre in the case of a______________?
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one________________?
If three forces acting in different planes can be represented by a triangle, these will be in________________?
The co-efficient of friction depends upon________________?
If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either__________________?
The algebraic sum of moments of the forces forming couple about any point in their plane is________________?
A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will____________________?
Kinetic friction is the________________?
Dynamic friction as compared to static friction is________________?
