A rubber wheel is used to drive a potter's wheel location, and are mounted so that their circular edges?
hit. The smaller the wheel has a radius of 2.0 cm and accelerates the rate of 7.2 rad / s ^ 2 and is in contact with the potter's wheel (radius of 25.0 cm). Calculate a) the acceleration angle potter's wheel, and b) the time it takes for the pottery wheel to reach its required speed of 65 rpm.
First, you must find the acceleration tangential end of the small wheel. It is equal to the angular acceleration of the radio. A = R * (angular acceleration) = 2 (7.2) = 14.4 cm / s ^ s This is the same to the tangential acceleration of the end of the wheel of fortune, as they are in contact and not sliding. Thus, to determine the angular acceleration of the wheel of fortune divides the tangential acceleration, the radius. Angular acceleration = a / r = 14.4/25 = 0.576 rad / s ^ 2 to find the time it takes the big wheel at 65 rpm you should first convert to rad / s (65rev / 1min) (2pi rad / 1rev) (1min: 60sec) = 6.8068 rad / s angular acceleration multiplied by time gives the angular velocity. acceleration angle * (t) = 0.576t angular velocity 6.8068/0.576 = t = 6.8068 t = 11.82 seconds (about) You might want to check my calculations course on values. Hope this helps
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