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Hace 5 días · A pendulum is a body suspended from a fixed support so that it swings freely back and forth under the influence of gravity. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back towards the equilibrium position.
Hace 13 horas · One of the lesser-known rule-bends was brought about by BMW, which deployed a novel "pendulum brake" to get an edge in Super Touring. But as clever as it was, it was an invention of the kind that ...
Hace 6 días · A simple pendulum consists of a single point of mass m (bob) attached to a rod (or wire) of length \( \ell \) and of negligible weight. We denote by θ the angle measured between the rod and the vertical axis, which is assumed to be positive in counterclockwise direction.
Hace 5 días · We assume that the pendulum is constrained to move in a fixed vertical plane, with the origin at the pivot when Cartesian coordinates or polar coordinates are employed. Obviously the system possesses two degrees of freedom, namely, the angle θ of the pendulum and the elongation r of the spring.
Hace 3 días · The pendulum consists of a bob (point mass) of mass m attached to the end of a light inextensible rod of length ℓ and negligible weight, with the motion taking place in a vertical plane. Such pendulum is usually referred to as a simple pendulum.
Hace 4 días · A ballistic pendulum is a device for measuring a bullet's momentum, from which it is possible to calculate the velocity and kinetic energy. Ballistic pendulums have been largely rendered obsolete by modern chronographs, which allow direct measurement of the projectile velocity.
Hace 2 días · Late in his life, when totally blind, Galileo designed an escapement mechanism for a pendulum clock (called Galileo's escapement), although no clock using this was built until after the first fully operational pendulum clock was made by Christiaan Huygens in the 1650s.
