In: Physics
A 40.0-cm diameter disk rotates with a constant angular
acceleration of 3.00 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 = 2.45 s, find the angular speed of the wheel.
(b) At t = 2.45 s, find the magnitude of the linear velocity and
tangential acceleration of P.
What is the linear velocity?
What is the tangential acceleration?
(c) At t = 2.45 s, find the position of P (in degrees, with
respect to the positive x-axis).
what is the answer ° counterclockwise from the +x-axis?