Engineering Mechanics
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is

Same at every point on its line of action
Different at different points on its line of action
Minimum, if it acts at the center of gravity of the body
Maximum, if it acts at the center of gravity of the body

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Engineering Mechanics
According to Newton's first law of motion,

None of these
Everybody continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force
To every action, there is always an equal and opposite reaction
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts

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Engineering Mechanics
Coplanar concurrent forces are those forces which

Meet at one point, but their lines of action do not lie on the same plane
Do not meet at one point and their lines of action do not lie on the same plane
Do not meet at one point, but their lines of action lie on the same plane
Meet at one point and their lines of action also lie on the same plane

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