Pull the pendulum ball from the equilibrium position to the positive direction of displacement, so that the cycloid line forms a slight ang! with the vertical direction, then let it vibrate from the static position, and start timing from the first movement of the pendulum ball to the lowest point. If the equation of motion is represented by a cosine function, the initial phase of the pendulum vibration is ⒸA -π/2. B. 0 C. 0. D. π/2.

Pull the pendulum ball from the equilibrium position to the positive direction of displacement, so that the cycloid line forms a slight ang! with the vertical direction, then let it vibrate from the static position, and start timing from the first movement of the pendulum ball to the lowest point. If the equation of motion is represented by a cosine function, the initial phase of the pendulum vibration is ⒸA -π/2. B. 0 C. 0. D. π/2.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.60P: The force P applied to the brake handle enables the band brake to reduce the angular speed of a...

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