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

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

ANSWER DOWNLOAD EXAMIANS APP

Applied Mechanics and Graphic Statics
The following is in unstable equilibrium

A uniform solid cone resting on its base on a horizontal plane
A satellite encircling the earth
A uniform solid cone resting on a generator on a smooth horizontal plane
A solid cube resting on one edge

ANSWER DOWNLOAD EXAMIANS APP