Figure 2-Torque It 3. A blowing ball with a 12 cm radius has an initial angular velocity of 5.0 rad/s. Sometime later, after rotating through 5.5 radians, the bowling ball has an angular velocity of 1.5 rad/s. What is ithe average angular velocity of the bolwing ball? (a) -1.75 rad/s (b) -0.70 rad/s (c) 1.30 rad/s (d) 3.3 rad/s 4. From #3, what is the average linear velocity of the bowling ball? (b) -0.08 m/s (a) -0.21 m/s (c) 0.40 m/s (d) 28 m/s

Figure 2-Torque It 3. A blowing ball with a 12 cm radius has an initial angular velocity of 5.0 rad/s. Sometime later, after rotating through 5.5 radians, the bowling ball has an angular velocity of 1.5 rad/s. What is ithe average angular velocity of the bolwing ball? (a) -1.75 rad/s (b) -0.70 rad/s (c) 1.30 rad/s (d) 3.3 rad/s 4. From #3, what is the average linear velocity of the bowling ball? (b) -0.08 m/s (a) -0.21 m/s (c) 0.40 m/s (d) 28 m/s

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 38P: During a 6.0-s time interval, a fly-wheel with a constant angular acceleration turns through 500...

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A wheel is rotating about a fixed axis with constant angular acceleration 3 rad/s2. At different moments, its angular speed is 2 rad/s, 0. and +2 rad/s. For a point on the rim of the wheel, consider at these moments the magnitude of the tangential component of acceleration and the magnitude of the radial component of acceleration. Rank the following five items from largest to smallest: (a) |at| when = 2 rad/s, (b)|ar| when = 2 rad/s, (c)|ar| when = 0, (d) |at| when = 2 rad/s, and (e) |ar| when = 2 rad/s. If two items are equal, show them as equal in your ranking. If a quantity is equal to zero, show that fact in your ranking.
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