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$1.00 physics
- From Physics: General-Physics
- Closed, but you can still post tutorials
- Due on Nov. 08, 2009
- Asked on Nov 06, 2009 at 10:36:47PM
Q:A 47.9-cm diameter disk rotates with a constant angular acceleration of 2.9 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) 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 positive x-axis) at t = 2.30s.
4°
