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14-09-2017
Physics

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A ball rolls around a circular track with an angular velocity of 4π rad/s. what is the period of the motion

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21-09-2017

The period, T, is the time required for one revolution.

The angular velocity is 4π rad/s.
Because one revolution = 2π radians, the period is
T = (2π rad)/(4π rad/s) = 0.05 s.

Answer: 0.5 s

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