Questions tagged 'Equilibrium of co-planar forces'

• A heavy uniform rod, 15cm long, is suspended from a fixed point by strings fastened to its ends, their lengths being 9 and 12 cm. If $\theta$ be the angle at which the rod is inclined to the vertical, then $\sin \theta =$
  Category: statics | Tags: Equilibrium of co-planar forces
• A light string of length l is fastened to two points A and B at the same level at a distance ‘a’ apart. A ring of weight W can slide on the string, and a horizontal force P is applied to it such that the ring is in equilibrium vertically below B. The tension in the string is equal to
  Category: statics | Tags: Equilibrium of co-planar forces
• A body of 6.5 kg is suspended by two strings of lengths 5 and 12 metre attached to two points in the same horizontal line whose distance apart is 13 m. The tension of the strings in kg wt are
  Category: statics | Tags: Equilibrium of co-planar forces
• A sphere of radius r and weight W rests against a smooth vertical wall, to which is attached a string of length l where one end is fastened to a point on the wall and the other to the surface of the sphere. Then the tension in the string is
  Category: statics | Tags: Equilibrium of co-planar forces
• 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
  Category: statics | Tags: Equilibrium of co-planar forces
• 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
  Category: statics | Tags: Equilibrium of co-planar forces
• There are three coplanar forces acting on a rigid body. If these are in equilibrium, then they are
  Category: statics | Tags: Equilibrium of co-planar forces
• 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
  Category: statics | Tags: Equilibrium of co-planar forces
• Three coplanar forces each equal to P, act at a point. The middle one makes an angle of ${{60}^{o}}$with each one of the remaining two forces. If by applying force Q at that point in a direction opposite to that of the middle force, equilibrium is achieved, then
  Category: statics | Tags: Equilibrium of co-planar forces
• A 2m long uniform rod ABC is resting against a smooth vertical wall at the end A and on a smooth peg at a point B. If distance of B from the wall is 0.3m, then
  Category: statics | Tags: Equilibrium of co-planar forces

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