A disk I=1/2MR^2 rotating at 1.0 rad/s accelerates to 5.0 rad/s while turning 10 radians. What is the disk's angular acceleration?
A disk I=1/2MR^2 rotating at 1.0 rad/s accelerates to 5.0 rad/s while turning 10 radians. What...
A motor turning at 10 rad/s accelerates to 25 rad/s at a constant acceleration of 5 rad/s2. How many radians does it turn through while accelerating? a) 0.053 b) 0.10 c) 26.2 d) 52.5 e) none of the above
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.
A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at 11 rad/s; 75 radians later, its angular speed is 22 rad/s. Calculate (a) the angular acceleration (rad/s^2), (b) the time required to complete the 75 radians, (c) the time required to reach the 11 rad/s angular speed, and (d) the number of radians from rest until the time the disk reaches the 11 rad/s angular speed.
VULSTIUNI A mass of 1 kg hangs from the side of a pulley. The pulley has a moment of inertia of 3/4 MR2, a mass of 10 kg, and a radius of 0.2 m. The pulley and hanging mass are initially at rest. What is the downward speed of the hanging mass when it has fallen 2.0 m? a. 1.15 m/s b. 1.37 m/s c. 1.55 m/s d. 1.83 m/s e. 2.15 m/s QUESTION 2 A5 kg 1.0 m radius...
A 0 4 kg flywheel, I = 1/2mr^2, accelerates from rest to 1200 rev/min in 6.0 seconds. If r = 0.4 m, find: a) its angular acceleration in rad/sec^2 b) its rotational kinetic energy at t = 6.0 sec.
A flywheel is a solid, rotating disk that is sometimes used to store energy. The moment of inertia for a solid disk is 1/2MR^2 where M is the mass and R is the radius. If a flywheel weighs 15kg and has a radius of 0.8m, determine the following. A) If a point on the outside of the disk is moving at 6 m/s, what is the angular velocity of the flywheel? B) If the flywheel starts from rest...
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?
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 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%
r r up Left Right Down A spinning disk is rotating at a rate of 2 rad/s in the counterclockwise direction as shown in the figure. What is the direction of the angular velocity vector? Incorrect right Incorrect down Correct: up Incorrect left s answer now shown above. You are correct. receipt no. is 160-4295 If the disk is speeding up at a rate of 2 rad/s2, what is the direction of the angular acceleration vector? Incorrect down Incorrect left...