A pilot flies a small plane in a vertical loop of radius . At the top of its trajectory he experiences weightlessness. If the acceleration due to gravity is , the speed of the plane at the top of its trajectory would be

Applied mechanics is the branch of science concerned with the motion of any substance that can be experienced or perceived by humans without the help of instruments. In short, when mechanics concepts surpass being theoretical and are applied and executed, general mechanics becomes applied mechanics.

Statics is a topic under Mechanics which studies the conditions under which an object or a structure subjected to time-invariant (static) forces is in equilibrium - i.e. the conditions under which it remains stationary or moves with a constant velocity.