for a body to be in equilibrium under the combined action of several forces.a)any 2 of this forces should be balanced by a third force.b)all forces form pair of equal and opposite forces. C)sum of torque about any point must be zero.d)the lines of action of all the forces must pass through the centre of gravity of the body
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The correct answer could be the option c - The sum of torque at any point must be equal to zero.
The sum of all the torques applied on a body is equal to its rotational mass or its moment of inertia. When the sum of all the forces acting on a body is equal to zero, it is called as Rotational equilibrium. It is analogous to translational equilibrium. In rotational equilibrium, since the sum of all the torques applied on a body is equal to zero, the net torque acting on the object will also be zero.
The sum of all the torques applied on a body is equal to its rotational mass or its moment of inertia. When the sum of all the forces acting on a body is equal to zero, it is called as Rotational equilibrium. It is analogous to translational equilibrium. In rotational equilibrium, since the sum of all the torques applied on a body is equal to zero, the net torque acting on the object will also be zero.
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Answer:
the sum of torque at any point must be zero
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