A platform rotating at 6.0 rad/sec slows down with constant angular acceleration and stops after 25s, what is the angular displacement of the platform?
The answer is 30 radians but I keep getting a different answer.
A platform rotating at 6.0 rad/sec slows down with constant angular acceleration and stops after 25s,...
A platform is rotating with an angular speed of 3.00 rad/s and an angular acceleration of 11.0 rad/s2. At a point on the platform that is 1.96 m from the axis of rotation, what is the magnitude of the total acceleration a?
A record turntable rotating at 33 1/3 rev/min slows down and stops in 45 s after the motor is turned off. (a) Find its (constant) angular acceleration in revolutions per minute-squared. rev/min2 (b) How many revolutions does it make in this time? rev
10. A body rotating at the angular speed of 20 rad/s slows down to an angular spee seconds. What is the average angular acceleration? 11. A body is rotating with an angular acceleration of 2 rad/s What is the linear acceleration of a point in this body that is 2.1 m from the axis of rotation? 12. Two masses, each of mass M, are separated by a distance D. a) what is the moment of inertia, if the axis of...
A diver leaves the springboard with an initial angular velocity of 4.1 rad/sec and a constant angular acceleration of -0.25 rad/sec^2. How long will it take for her to complete 1.5 revolutions, assuming her initial angular displacement is 0 radians?
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 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%
16. A wheel, released from rest, is rotating with constant angular acceleration of 2.6 rad/s2. At 6.0 s after its release: (a) What is its angular speed? (b) Through what angle has the wheel turned? (c) How many revolutions has it completed? (d) What is the linear speed and what is the magnitude of the linear acceleration of point 0.30 m from the axis of rotation? Ans: 16rads, 47 rad, 7.4rev, 4. m/s, 73 m/s2)
There is a disk rotating with a constant angular speed of 18 rad/sec. At some instant the disk begins to experience a constant friction resulting in an angular acceleration of 1.4 rad/sec2 Find: 1) the time (in sec) it takes the disk to come to a complete stop due to friction 2) total number of complete revolutions the disk undergoes before coming to a complete stop due to friction; 3) the time (in sec) it takes the disk to complete...
Problem #4 A disk is rotating with a constant angular speed of 18 rad/sec. At some instant the disk begins to experience a constant friction resulting in an angular acceleration of 1.4 rad/sec?. Find: (a) the time (in sec) it takes the disk to come to a complete stop due to friction; (b) total number of complete revolutions the disk undergoes before coming to a complete stop due to friction; (c) the time in sec) it takes the disk to...