A wheel is rotating about an axis that is in the z-direction. The angular velocity w is at -6.00 rad/s at t=0, increases linearly with time, and is at + 8.00 rad /s at t=7.0 sec. We have taken counterclockwise rotation to be positive. (a) Is the angular acceleration during this time interval positive or negative?(b) During what time interval is the speed of the wheel increasing? Decreasing? (c) What is the angular displacement of the wheel at t=7.0 sec.? *
A wheel is rotating about an axis that is in the z-direction. The angular velocity w is at -6.00 rad/s at t=0, increases linearly with time, and is at + 8.00 rad /s at t=7.0 sec. We have taken counterclockwise rotation to be positive. (a) Is the angular acceleration during this time interval positive or negative?(b) During what time interval is the speed of the wheel increasing? Decreasing? (c) What is the angular displacement of the wheel at t=7.0 sec.? *
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 10.7CYU: Check Your Understanding The fan blades on a jet engine have a moment of inertia 30.0kgm2 . In 10s,...
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