QUESTION 3 5 points Save Answer A solid disk is initially rotating at 25 rad/s and...
A disk is initially rotating (about its center) at 48 rad/s counter-clockwise. After a constant angular acceleration is applied to it for 2.2 seconds, it is rotating at 9 rad/s counter-clockwise. How many revolutions does the disk make in that time
A disk, initially rotating at 123 rad/s, is slowed down with a constant angular acceleration of magnitude 3.96 rad/s2. (a) How much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate during that time?
A disk, initially rotating at 118 rad/s, is slowed down with a constant angular acceleration of magnitude 3.94 rad/s2. A) How much time does the disk take to stop? B) Through what angle does the disk rotate during that time?
A disk, initially rotating at 124. rad/s, is quickly slowed down with a constant angular acceleration of magnitude 4.18 rad/s2. (a) How much time elapses before the disk stops? s (b) Through what angle does the disk rotate in coming to rest? rad Thanks!
A disk, initially rotating at 135 rad/s, is slowed down with a constant angular acceleration of magnitude 3.81 rad/s2. (a) How much time does the disk take to stop? (b) Through what angle (rad) does the disk rotate during that time? (a) Number Units (b) Number Units the tolerance is +/-2%
A solid disk of 5.0 kg is rotating at a constant angular velocity of 9.5 rad/s. Calculate the angular momentum of the disk.
Question 7 8 pts A disk is rotating at 21 rad/s counter-clockwise about its center and a constant angular acceleration of 4 rad/s? is applied to it clockwise. After 0.69 seconds, what is its rotational kinetic energy about its center if c 1/2, the mass of the disk is 4 kg, and its radius is 0.74 meters? Answer in Joules.
A uniform solid disk of radius 80.0 cm is rotating about its central axis with constant angular acceleration of 50.0 rad/s2 . At a certain instant, the disk is rotating at 10.0 rad/s. What is the magnitude of the net linear acceleration of a point on the rim (edge) of the disk?
A hollow disk is rotating about its center at 5 rad/s. Friction is acting on the disk at the axis of rotation producing an angular acceleration of 1 rad/s. How many revolutions will the disk rotate before coming to a stop?
Really confused on how to do these. Please help! Answers
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1. 1 rad 2. 8m/s 3. 24 kg · m/s 4. 8 rad/s? 5. 48 N·m A horizontal uniform solid disk of mass 3 kg and radius 2 m starts from rest and rotates, about a vertical axis through its center, with a constant angular acceleration. At 0.5 s, it is rotating with an angular speed of 4 rad/s. 1. [5 points] Through what angle has the disk turned...