A 50.9-cm diameter disk rotates with aconstant angular acceleration of 2.4rad/s

Question

A 50.9-cm diameter disk rotates with aconstant angular acceleration of 2.4rad/s2. It starts from rest at t = 0, and aline drawn from the center of the disk to a point P on therim of the disk makes an angle of 57.3° with the positivex-axis at this time. (a) Find the angular speed of the wheel att = 2.30 s.
1 rad/s

(b) Find the linear velocity and tangential acceleration of P att = 2.30 s.
linear velocity 2 m/s tangential acceleration 3 m/s2
c) Find the position of P (in degrees, with respect to the positivex-axis) at t = 2.30s.
4° (a) Find the angular speed of the wheel att = 2.30 s.
1 rad/s

(b) Find the linear velocity and tangential acceleration of P att = 2.30 s.
linear velocity 2 m/s tangential acceleration 3 m/s2
c) Find the position of P (in degrees, with respect to the positivex-axis) at t = 2.30s.
4° linear velocity 2 m/s tangential acceleration 3 m/s2

Explanation / Answer

c) 421 - 360 = 61o

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