Correct Answer:
Option D - Principle of Transmissibility of forces :- This principle states that the condition of equilibrium or the motion of a rigid body will remain unchanged if a force acting at a given point of the rigid body is replaced by a force of the same magnitude and same direction, but acting at a different point, provided that the two forces have the same line of action.
• It can also be states. "the point of application of a force may be transmitted along its line of action without changing the effect of the force on the rigid body"
D. Principle of Transmissibility of forces :- This principle states that the condition of equilibrium or the motion of a rigid body will remain unchanged if a force acting at a given point of the rigid body is replaced by a force of the same magnitude and same direction, but acting at a different point, provided that the two forces have the same line of action.
• It can also be states. "the point of application of a force may be transmitted along its line of action without changing the effect of the force on the rigid body"