A CD with a Diameter of 12

question 60

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 10.0 seconds from the start?

• A) 0.65 m/s²
• B) 1.00 m/s²
• C) 1.25 m/s²
• D) 1.37 m/s²
• E) 1.86 m/s²

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Definitions:

Temporal Bone

A bone situated on the side of the skull, containing the organs of hearing and balance.

Cataract

Complete or partial opacity of the lens of the eye.

Lens of the Eye

A transparent structure behind the iris of the eye that helps to refract light to be focused on the retina.

Acute Central Vision

Acute central vision refers to the component of vision that is responsible for sharp, detailed vision in the direct line of sight.