Instruction: Solve for the following problems. Draw FBD (if necessary) and show your complete solutions. A wheel is rotating about an axis that is in the z-direction. The angular velocity wz is -6.00 rad/s at t=0, increases linearly with time, and is +8.000 rad/s at t = 7.00 s. We have taken counterclockwise rotation to be positive. (a) Is 1. 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 = 7.00 s ?
Instruction: Solve for the following problems. Draw FBD (if necessary) and show your complete solutions. A wheel is rotating about an axis that is in the z-direction. The angular velocity wz is -6.00 rad/s at t=0, increases linearly with time, and is +8.000 rad/s at t = 7.00 s. We have taken counterclockwise rotation to be positive. (a) Is 1. 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 = 7.00 s ?
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter12: Rotation I: Kinematics And Dynamics
Section: Chapter Questions
Problem 33PQ: Consider again the two wind turbines in Problem 32. a. At what point along the 40-m blade would the...
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