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A 41.0-cm diameter disk rotates with a constant angular acceleration of 2.80 rad/s2. It starts from...

A 41.0-cm diameter disk rotates with a constant angular acceleration of 2.80 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time.

(a) At t = 2.50 s, find the angular speed of the wheel.
______??____rad/s

(b) At t = 2.50 s, find the magnitude of the linear velocity and tangential acceleration of P.

linear velocity = _______?? m/s
tangential acceleration =______// m/s2


(c) At t = 2.50 s, find the position of P (in degrees, with respect to the positive x-axis).
____??____ ° counterclockwise from the +x-axis

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