Art Pottery For Sale

A small rubber wheel is used to drive a potter's wheel Lage, and they are mounted so that their circular edges?

touch. The small wheel has a radius of 2.0 cm and accelerates at a rate of 7.2 rad / s ^ 2 and is in contact with the pottery wheel (radius 25.0 cm). Calculate a) the acceleration angular wheel pottery and b) the time it takes the pottery wheel to reach its required speed of 65 rpm.

You must first find the acceleration tangential point of the outermost of the small wheel. It is equal to the angular acceleration times the radius. A * R = (angular acceleration) = 2 (7,2) = 14.4 cm s ^ / s, equivalent to the tangential acceleration of the outermost point of the Ferris wheel, because they are in contact and not slip. Thus, to find the angular acceleration of the Ferris wheel, you divide by tangential acceleration radius. Angular acceleration = a / r = 14.4/25 = 0.576 rad / s ^ 2 To find the time required for the big wheel to 65 rpm, you must first convert it to rad / s (65rev / 1min) (2 pi rad / 1Rev) (1min / 60sec) = 6.8068 rad / s The angular acceleration multiplied by the time you give the angular velocity. * Acceleration angle (t) = 0.576t angular velocity = 6.8068 t = 6.8068/0.576 t = 11.82 seconds (about) You can check my calculations to be sure about values. Hope that aid

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