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23 Nov 2019
A 48.6-cm diameter disk rotates with a constant angularacceleration of 2.9 rad/s2. It starts from rest at t = 0, and aline drawn from the center of the disk to a point P on the rim ofthe disk makes an angle of 57.3° with the positive x-axis at thistime.
(a) Find the angular speed of the wheel at t = 2.30 s.
(b) Find the linear velocity and tangential acceleration of P at t= 2.30 s.
linear velocity: m/s2
tangential acceleration: m/s2
c) Find the position of P (in degrees, with respect to the positivex-axis) at t = 2.30s.
A 48.6-cm diameter disk rotates with a constant angularacceleration of 2.9 rad/s2. It starts from rest at t = 0, and aline drawn from the center of the disk to a point P on the rim ofthe disk makes an angle of 57.3° with the positive x-axis at thistime.
(a) Find the angular speed of the wheel at t = 2.30 s.
(b) Find the linear velocity and tangential acceleration of P at t= 2.30 s.
linear velocity: m/s2
tangential acceleration: m/s2
c) Find the position of P (in degrees, with respect to the positivex-axis) at t = 2.30s.
