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(U) Wnul 13 the angulal speed at i l-2.00 S! 3. A solid disk rotates with a constant angular deceleration of -2.0 rad/s^2. If the angular speed of the wheel was +6.00 rad/s when motion began, (a) Through what angle does the disk rotates in 1.5 s ? (b) Find the angular speed at the end of 1.5 s. 4. A 15N force is applied to a cord wrapped around a pulley of mass M= 4kg and radius R = 33cm. The pulley accelerates uniformly from rest to an %3D angular speed @,= 30 rad/s in 3 seconds. If the frictional torque (at axle) is %3D T,=1.10mN, determine %3D Aw a) The angular acceleration a = At b) The moment of Inertia of the pulley (disk I= (1/2)m r^2) c) The linear speed v @·r %3D d) The rotational kinetic energy KE,=-lo² %3D R. 5. A drum rotates around its central axis at an angular velocity of 12.6 rad/s. If the drum slows down at a constant rate to 8.4 rad/s in 2 seconds, a) What is the angular acceleration? b) Through what angle Odid it rotate? 6. You roll a disk along the sidewalk. The disk's mass is 0.5kg, r 0.12m, V3D2M/s. Find the total Kinetic Energy. That is the combined energy of translation and rotation. Remember the Moment of Inertia of a disk.

(U) Wnul 13 the angulal speed at i l-2.00 S! 3. A solid disk rotates with a constant angular deceleration of -2.0 rad/s^2. If the angular speed of the wheel was +6.00 rad/s when motion began, (a) Through what angle does the disk rotates in 1.5 s ? (b) Find the angular speed at the end of 1.5 s. 4. A 15N force is applied to a cord wrapped around a pulley of mass M= 4kg and radius R = 33cm. The pulley accelerates uniformly from rest to an %3D angular speed @,= 30 rad/s in 3 seconds. If the frictional torque (at axle) is %3D T,=1.10mN, determine %3D Aw a) The angular acceleration a = At b) The moment of Inertia of the pulley (disk I= (1/2)m r^2) c) The linear speed v @·r %3D d) The rotational kinetic energy KE,=-lo² %3D R. 5. A drum rotates around its central axis at an angular velocity of 12.6 rad/s. If the drum slows down at a constant rate to 8.4 rad/s in 2 seconds, a) What is the angular acceleration? b) Through what angle Odid it rotate? 6. You roll a disk along the sidewalk. The disk's mass is 0.5kg, r 0.12m, V3D2M/s. Find the total Kinetic Energy. That is the combined energy of translation and rotation. Remember the Moment of Inertia of a disk.

Physics for Scientists and Engineers, Technology Update (No access codes included)
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter10: Rotation Of A Rigid Object About A Fixed Axis
Section: Chapter Questions
Problem 10.3OQ: A wheel is rotating about a fixed axis with constant angular acceleration 3 rad/s2. At different...
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(U) Wnul 13 the angulal speed at i l-2.00 S! 3. A solid disk rotates with a constant angular deceleration of -2.0 rad/s^2. If the angular speed of the wheel was +6.00 rad/s when motion began, (a) Through what angle does the disk rotates in 1.5 s ? (b) Find the angular speed at the end of 1.5 s. 4. A 15N force is applied to a cord wrapped around a pulley of mass M= 4kg and radius R = 33cm. The pulley accelerates uniformly from rest to an %3D angular speed @,= 30 rad/s in 3 seconds. If the frictional torque (at axle) is %3D T,=1.10mN, determine %3D Aw a) The angular acceleration a = At b) The moment of Inertia of the pulley (disk I= (1/2)m r^2) c) The linear speed v @·r %3D d) The rotational kinetic energy KE,=-lo² %3D R. 5. A drum rotates around its central axis at an angular velocity of 12.6 rad/s. If the drum slows down at a constant rate to 8.4 rad/s in 2 seconds, a) What is the angular acceleration? b) Through what angle Odid it rotate? 6. You roll a disk along the sidewalk. The disk's mass is 0.5kg, r 0.12m, V3D2M/s. Find the total Kinetic Energy. That is the combined energy of translation and rotation. Remember the Moment of Inertia of a disk.
Transcribed Image Text:(U) Wnul 13 the angulal speed at i l-2.00 S! 3. A solid disk rotates with a constant angular deceleration of -2.0 rad/s^2. If the angular speed of the wheel was +6.00 rad/s when motion began, (a) Through what angle does the disk rotates in 1.5 s ? (b) Find the angular speed at the end of 1.5 s. 4. A 15N force is applied to a cord wrapped around a pulley of mass M= 4kg and radius R = 33cm. The pulley accelerates uniformly from rest to an %3D angular speed @,= 30 rad/s in 3 seconds. If the frictional torque (at axle) is %3D T,=1.10mN, determine %3D Aw a) The angular acceleration a = At b) The moment of Inertia of the pulley (disk I= (1/2)m r^2) c) The linear speed v @·r %3D d) The rotational kinetic energy KE,=-lo² %3D R. 5. A drum rotates around its central axis at an angular velocity of 12.6 rad/s. If the drum slows down at a constant rate to 8.4 rad/s in 2 seconds, a) What is the angular acceleration? b) Through what angle Odid it rotate? 6. You roll a disk along the sidewalk. The disk's mass is 0.5kg, r 0.12m, V3D2M/s. Find the total Kinetic Energy. That is the combined energy of translation and rotation. Remember the Moment of Inertia of a disk.
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