Applied Mechanics and Graphic Statics
Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of

One-third of the total height above base
One-half of the total height above base
One-fourth of the total height above base
None of these

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Applied Mechanics and Graphic Statics
The maximum displacement of a particle executing S.H.M. corresponds to

Zero potential energy and maximum kinetic energy
Minimum kinetic energy and minimum potential energy
Zero kinetic energy and maximum potential energy
Maximum kinetic energy and maximum potential energy

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