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- Assume a clock mounted on the wall, what is the value of angular acceleration of the second hand of the clock on the wall ? 11 12 10 3. 765 2nrad / sec? 60 rad / sec? O rad/sec2 n rad/ sec? 4.6. 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)?An object that is initially at rest begins to rotate under a constant angular acceleration of 2.16 rad/s2. How long does it take the object to undergo an angular displacement of 217 rad?
- A turntable rotates with a constant 2.25 rad/s² angular acceleration. After 4.50 s it has rotated through an angle of 30.0 rad. What was the angular velocity of the wheel at the beginning of this interval?2. A wheel of radius 20 cm is initially rotating at 12 rpm. It then speeds up at a constant rate, reaching a speed of 35 rpm after 3.1 seconds. a) What is the angular acceleration of the disk? b) How much does it rotate (in radians) while it is accelerating from 12 to 35 rpm?" c) What is total acceleration (in m/s?) of a point on the edge of the disk at the moment it has just started accelerating?|19. A wheel 1.00 m in radius is rotating at 100 rad/s. The wheel accelerates uniformly from 100 rad/s to 500 rad/s in 100 revolutions. Determine the Rate of angular acceleration Time required for the wheel to accelerate to 500 radians per second Tangential acceleration of a point on the rim as the wheel is accelerating Radial acceleration of a point on the rim before acceleration begins
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