A Uniform Meter Stick Is Pivoted to Rotate About a Horizontal

question 79

Multiple Choice

A uniform meter stick is pivoted to rotate about a horizontal axis through the 25-cm mark on the stick. The stick is released from rest in a horizontal position. The moment of inertia of a uniform rod about an axis perpendicular to the rod and through the center of mass of the rod is given by (1/12) ML². Determine the magnitude of the initial angular acceleration of the stick.

• A) 17 rad/s²
• B) 13 rad/s²
• C) 15 rad/s²
• D) 19 rad/s²
• E) 23 rad/s²

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Definitions:

Spermatogenic Cells

The cells that give rise to sperm cells.

Bulbourethral Glands

Glands that lie beneath the prostate and empty their fluid into the urethra. Their fluid aids in sperm movement.

Glans Penis

A cone-shaped structure at the end of the penis.

Bulbourethral Gland

A gland in males that secretes a fluid into the urethra to lubricate the urethra and neutralize acids during sexual arousal.