APPLICATION OF CIRCULAR MOTION

WHAT IS CIRCULAR MOTION?

In physics, circular motion is rotation along a circle: a circular path or a circular orbit. It can be uniform, that is, with constant angular rate of rotation, or non-uniform, that is, with a changing rate of rotation. The rotation around a fixed axis of a three-dimensional body involves circular motion of its parts. We can talk about circular motion of an object if we ignore its size, so that we have the motion of a point mass in a plane. For example, the center of mass of a body can undergo circular motion.

APPLICATION OF CIRCULAR MOTION

In the amusement parks, people cater the roller coasters due to the thrill they get from them. This thrill is not due to the speed of the roller coaster but due to the acceleration and the feeling of weightlessness. The coaster experience two forces.

THE TWO FORCE

Force of gravity or Fg is the force exerted by the gravitational field of a massive object on any body within the vicinity of its surface. This force is dependent on three factors: the mass of the massive object, the mass of the smaller body, and the separation between the two, measured between their geometrical centers. Since planets are typically spherical, then their cores are taken to be their geometrical centers.

In physics, the normal force or FN

(occasionally N) is the component, perpendicular to the surface of contact, of the contact force exerted by, for example, the surface of a floor or wall, on an object, preventing the object from entering the floor or wall. In a static situation it is just enough to balance the forces acting on the object, such as the force with which the object pushes against the surface and friction.

The common experience of circular motion in sports involves the turns.

Centripetal force is a force that makes a body follow a curved path: it is always directed orthogonal to the velocity of the body, toward the instantaneous center of curvature of the path.The term centripetal force comes from the Latin words centrum ("center") and petere ("tend towards", "aim at"), signifying that the force is directed inward toward the center of curvature of the path. Isaac Newton's description was: "A centripetal force is that by which bodies are drawn or impelled, or in any way tend, towards a point as to a center."

Friction is the force resisting the relative motion of solid surfaces, fluid layers,and/or material elements sliding against each other. It may be thought of as the opposite of "slipperiness".

Cars rounding a curve are supported by the friction of the tires. Roads are also blanked to make turns easier for cars traveling at high speeds. The banking of the roads serves as the centripetal force to keep the wheels moving in a circle.

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