Applied Mechanics and Graphic Statics
Free body diagram is an

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
None of these

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Applied Mechanics and Graphic Statics
Periodic time of body moving with simple harmonic motion, is

Directly proportional to the square of its angular velocity
Inversely proportional to its angular velocity
Directly proportional to its angular velocity
Inversely proportional to the square of its angular velocity

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