10. A body rotating at the angular speed of 20 rad/s slows down to an angular...
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 platform is rotating at an angular speed of 1.62 rad/s. A block is resting on this platform at a distance of 0.437 m from the axis. The coefficient of static friction between the block and the platform is 0.720. Without any external torque acting on the system, the block is moved toward the axis. Ignore the moment of inertia of the platform and determine the smallest distance from the axis at which the block can be relocated and still...
When a ceiling fan rotating with an angular speed of 2.75 rad/s is turned off, a friction torque of 0.120 N.m slows it to a stop in 22.5s . What is the moment of inertia of the fan?
a platform is rotating at an angular speed of 2.4 rad/s... Previous Answers C/10 9.Po68. My Notes Ask Your Teach 7. 0/1 points 1 3/6 Submissions Used A platform is rotating at an angular speed of 2.4 rad/s. A block is resting on this platform at a distance of 0.31 m from the axis. The coefficient of static friction between the block and the platform is 0.79. Without any external torque acting on the system, the block is moved toward...
When a ceiling fan rotating with an angular speed of 3.46 rad/s is turned off, a frictional torque of 0.155 N⋅m slows it to a stop in 31.4 s. What is the moment of inertia of the fan?
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.
17. The angular velocity of a rotating turntable is given in rad/s by w 2.7P. What is its angular acceleration at t 2.0s? 4.5+0.641- A)-10 rad/s D) 2.4 rad/s B)-5.0 rad/s2 E) 3.1 rad/s2 C)-5.4 rad/s2 13. Two homogeneous spheres A and B of masses m and 2m having radii 2a and a respectively are touching each other. The distance of centre of mass from first sphere is: A) a B) 2a C) 3a D) 0 E) None of the...
When a ceiling fan rotating with an angular speed of 3.00 rad/s is turned off, a frictional torque of 0.100 N?mslows it to a stop in 24.5 s . What is the moment of inertia of the fan?
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)
A wheel rotates through an angle of 13.8 rad as it as it slows from 22 rad/s to 13.5 rad/s with constant angular acceleration. What is the magnitude of the net torque acting on the wheel? The moment of inertia of the wheel about its axis of rotation is 0.0625 kg-m^2. a. 0.683 kg-m^2/s^2 b. 0.341 kg-m^2/s^2 c. 0.039 kg-m^2/s^2 d. 1.41 kg-m^2/s^2 e. 6.94 kg-m^2/s^2