Uniform Circular Motion: a Ball of Mass 5

question 27

Multiple Choice

Uniform circular motion: A ball of mass 5.0 kg is suspended by two wires from a horizontal arm that is attached to a vertical shaft, as shown in the figure. The shaft is in uniform rotation about its axis. The rate of rotation is adjusted until the tensions in the two wires are EQUAL. At that speed, the radial acceleration of the ball is closest to

• A) 4.9 m/s²
• B) 5.9 m/s²
• C) 6.9 m/s²
• D) 7.9 m/s²
• E) 9.9 m/s²

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Definitions:

Shift+click

A computer interaction technique involving holding the Shift key and clicking with the mouse, typically used to extend selections in graphical user interfaces.

Ruler

A graphical user interface element displaying a linear measure to aid in the layout of text, images, or other elements in documents and presentations.

Right-drag

A mouse operation involving dragging an object while holding down the right mouse button, often used to open context-specific menus or perform special actions.

Control Layout

The arrangement and organization of GUI controls (like buttons, text boxes, etc.) within a software application or a webpage, enhancing user interaction and functionality.