1. A wheel with the diameter 2 cm is rotating in such a way that the time dependence of its rotation angle is d=1 rad +At+Bt, where A=1 rad/s, B=0.5 rad/s. What is the acceleration of the points on the wheel rim 2 seconds after the rotation onset?

1. The blades of a fan running at low speed turn at 300 rpm. When the fan is switched to high speed, the rotation rate increases uniformly to 430 rpm in 5.30 s. What is the magnitude of the angular acceleration of the blades? rad/s2 f60 ssi f60 0 ssro0

6. A uniform disk turns at 3.3 rev/s around a frictionless central axis. A nonrotating rod is dropped onto the disk. The rod has the same mass as the disk and length equal to the diameter of the disk. The two objects then turn together at the same rate with the centers lined up vertically. What is the new angular velocity (in rad/s) and new angular frequency (in rev/s)?

5. A wheel is rotating with an angular speed of w(t) = t² + 2 (rad/s). What is the tangential acceleration of a point 1.0 m from the axis of rotation at time t = 1.0 s?