An Old LP Record That Is Originally Rotating at 33

question 57

Multiple Choice

An old LP record that is originally rotating at 33.3 rad/s is given a uniform angular acceleration of 2.15 rad/s2. Through what angle has the record turned when its angular speed reaches 72.0 rad/s?

• A) 66.8 rad
• B) 316 rad
• C) 83.2 rad
• D) 697 rad
• E) 948 rad

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Definitions:

Hinge Joint

A type of synovial joint that allows movement in one plane, similar to the motion of a door hinge, commonly found in the knee and elbow.

Anterior Fontanel

The largest and most notable soft spot on a baby's skull, which eventually closes as the skull bones fuse.

Sagittal Suture

A fibrous joint that connects the two parietal bones of the skull along the midline, resembling a seam, contributing to the skull's rigidity and shape.

Synovial Fluid

A viscous, non-Newtonian fluid found in the cavities of synovial joints, serving to reduce friction between the articular cartilages during movement.