Engineering Mechanics
The algebraic sum of moments of the forces forming couple about any point in their plane is

Both of above are wrong
Equal to the moment of the couple
Both of above are correct
Constant

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

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
None of these
To every action, there is always an equal and opposite reaction
Everybody continues in its state of rest or of uniform motion, in a straight line, unless it is acted upon by some external force

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Engineering Mechanics
The resolved part of the resultant of two forces inclined at an angle 'θ' in a given direction is equal to

The sum of the forces multiplied by the sine of θ
The sum of the resolved parts of the forces in the given direction
The algebraic sum of the resolved parts of the forces in the given direction
The difference of the forces multiplied by the cosine of θ

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