Applied Mechanics and Graphic Statics
To double the period of oscillation of a simple pendulum

Its length should be doubled
The mass of its bob should be quadrupled
Its length should be quadrupled
The mass of its bob should be doubled

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Applied Mechanics and Graphic Statics
Newton’s Law of Motion is:

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
Everybody continues in its state of rest or of uniform motion in a straight line, unless it is acted upon by some external force
All listed here

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