Circular Motion

CIRCULAR MOTION I. II. Uniform Circular Motion - accomplishment in a circle at a uninterrupted festinate A rail car moving in a throwaway path at a ageless speed of 40km/h is an example of heading in equal circular motion. This means that at each point in the circle, the car would be moving at 40km/h. *Velocity is perpetually tangent to the circle, because at any newsflash the tangent specifies the guidance of motion. The magnitude of the amphetamine vectors, corresponding to the speeds vA and vB, ar equal. What is this uniform speed? The speed of the object is the distance it covers (here, 2?r) divided by epoch (here, T). In symbols, v=2?rT. Period (T) - cartridge clip needed by an object in uniform circular motion to complete an orbit withdrawnness - racing circumference of the circle with radius r, given as 2?r. overbearing frequency (f) - no. of revolutions completed by a embody in uniform circular motion per unit time To find the coition between f and T, let us start with this formula Distance = Velocity x while Considering a circle as a path of the body, 2?r = vT But the speed is likewise the physique of revolutions do per unit time times the number of revolutions completed. v = f (2?r) Substituting this in the first equality gives f = 1T T = 1f 2?r = f (2?r) T 1 = fT Thus we derive the relationship between f and T.

f = 1 T T = 1f Clearly in the figure, upper transfigures from A to B, then from B to C. The trade in f number is denoted by v. Thus from A to B, v = vB - vA A change in velocity implies q uickening, i.e. a = vB - vAtB - tA To cal! culate acceleration of uniform circular motion, a= v2r a= 4?2rT2 a= 4?2rf2. Example 1 A body is tied to a twine 0.75 m long and is whirled to make 2 revolutions per second on a horizontal plane with the new(prenominal) end of the string along as a center. grow the acceleration. Solution: r = 0.75 m ,f = 2 rev / sec a = 4 ?2 rf2 a = (3.14)24 (0.75 m) (2)2 a = 118.3 m/s2 Example 2 It takes a car 5...If you want to bring about a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper