A CD with a Diameter of 12

question 3

Multiple Choice

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec² acquires an angular velocity of 5.00 rad/sec.The CD continues rotating at 5.00 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration.What is the total acceleration of a point 4.00 cm from the center at the time 30.0 seconds from the start?

• A) 0.0650 m/s²
• B) 0.0522 m/s²
• C) 0.0444 m/s²
• D) 0.0324 m/s²
• E) 0.0243 m/s²

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Definitions:

Girdles

Structures that connect the limbs to the axial skeleton, including the pelvic girdle and shoulder girdle.

Rib Cage

The set of bones surrounding the chest that protects the heart and lungs.

Orbit

The bony cavity containing the eye, or alternatively, the path one object in space takes around another due to gravity.

Maxilla

The upper jawbone in most vertebrates, forming part of the skull and housing the upper teeth.