Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to

Related MCQs

• The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in mangnitude and direction by the third side of of a triangle, taken in opposite order.
• The polygon law of forces states that if a number of forces, acting simultaneously on a particle, be represented in magnitude and direction by the sides a polygon taken in order, then their resultant is represented in magnitude and direction by the closing side of the polygon, taken in opposite direction.
• If three forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, the forces shall be in equilibrium.
• If three forces acting at a point are represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are in equilibrium
• If a number of forces acting at a point be represented in magnidude and direction by the three sides of a triangle, taken in order, then the forces are not in equilibrium
• Two equal and opposite parallel forces whose lines of action are different form a couple.
• If the resultant of two equal forces has the same magnitude as either of the forces, then angle between the two forces is
• Two like parallel forces are acting at a distance of 24 mm apart and their resultant is 20 N. If the line of action of the resultant is 6 mm from any given force the two forces are
• Two equal and opposite parallel forces whose lines of action are different, can be replaced by a single force parallel to the given forces
• When a rigid body is suspended vertically, and it oscillates with a small amplitude under the action of the force of gravity, the body is known as