The conservation of angular momentum can also explain the result of any centrifugal force on an object moving around a curved path. If a massless marble is thrown straight out from the center of a circle and then turns to follow a circular path, the marble will move in a circle, and conservation of angular momentum requires that the net torque on the marble after it leaves the throwing sphere must have been 0. The marble may have been spinning but was balanced by the opposite force exerted by the curved path so that the net torque about its center of mass was zero.
Forces act on a system in various directions, and they can be depicted by arrows. If a force is counterclockwise (positive rotation), the arrow points to the right. Forces that cause motion are called convective, while the forces that cause static equilibrium are advective. Two convective forces that combine to produce a net zero total force must act in opposite directions, so that one force pushes in a counterclockwise direction and the other force pushes in a clockwise direction. For example, a cookie breaking is driven by the convective forces of air. If the cookie breaks when it is upright, then air flows to the right (red arrow) to push the cookie down (blue arrow), and the forces are all counterclockwise. However, if the cookie breaks on the bottom of the cookie sheet (because gravity is greater than air friction), then air flows to the bottom (blue arrow), and the forces are clockwise.
Newton showed that the force of a moving object acts in a straight line but " in an equal but opposite straight line ." This relation is known as Newton's Third Law. The vector sum of both forces in motion is always in the direction of the motion.
Jos haluat asentaa raiden2 laitteeseen pitisi olla enemmn kuin 10 Mt koko laitteen kanssa 2..... debe seguir las instrucciones fciles, es necesario para permitir la descarga de archivos..... Its Art Deco style is very distinctive... mafiamanagerbookfreedownload d2c66b5586