Statistics Test...

A couple is of moment G and the force forming the couple is P. If P is turned through a right angle, the moment of the couple thus formed is H. If instead, the force P are turned an angle α, then the moment ofcouple becomes

The resultant of the forces 4, 3, 4 and 3 unit actingalong the lines AB, BC, CD and DA of a square ABCD of side \'a\' respectively is

Three like parallel forces P, Q, R act at the corner pointsof a triangle ABC. Their resultant passes through the circumcentre, if

A and B are two like parallel forces. A couple of moment H lies in the plane of A and B contained with them. The resultant of A and B after combining isdisplaced through a distance

A system of five forces whose directions and non-zero magnitudes can be chosen arbitrarily, will never be in equilibrium if n of the forces are concurrent, where

A uniform rod of weight W and length 2l is resting in a smooth spherical bowl of radius r. The rod is inclined to the horizontal at an angle of

There is a system of coplanar forces acting on a rigid body represented in magnitude, direction and sense by the sides of a polygon taken in order, then the system is equivalent to

A 2m long uniform rod ABC is resting against a smooth vertical wall at the end A on a smooth peg at a point B. If distance of B from the wall is 0.3 m, then

The resultant of two forces sec B and sec C along sidesAB, AC of a triangle ABC is a force acting along AD, where D is