Applied Mechanics and Graphic Statics
Free body diagram is an

None of these
Isolated joint with internal forces acting on it
Isolated joint with all the forces, internal as well as external, acting on it
Isolated joint with only body forces acting on it

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Applied Mechanics and Graphic Statics
A body is said to move with Simple Harmonic Motion if its acceleration, is

Proportional to the square of the distance from the point of reference
Always directed away from the centre, the point of reference
Inversely proportion to the distance from the point of reference
Proportional to the distance from the point of reference and directed towards it

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