0
answers
0
watching
80
views
23 Nov 2019
A 38.4-cm diameter disk rotates with a constant angularacceleration of 2.7 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.
1 rad/s
(b) Find the linear velocity and tangential acceleration of P at t= 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 38.4-cm diameter disk rotates with a constant angularacceleration of 2.7 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.
1 rad/s
(b) Find the linear velocity and tangential acceleration of P at t= 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°
