A CD with a Diameter of 12

question 86

Multiple Choice

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.0 rad/sec² acquires an angular velocity of 5.0 rad/sec.The CD continues rotating at 5.0 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular deceleration.What is the centripetal acceleration of a point 4.0 cm from the center at the time 2.0 seconds from the start?

• A) 0.37 m/s²
• B) 0.30 m/s²
• C) 0.28 m/s²
• D) 0.21 m/s²
• E) 0.16 m/s²

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Definitions:

Listening Skills

The skill of precisely understanding and perceiving messages throughout the communication process.

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The ability to ask questions effectively, aiming to gather information, clarify doubts, or probe deeper into a subject matter.

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The abilities used by a person to interact effectively with others, including communication, empathy, and conflict resolution.

Nonverbal Behaviors

Communication actions without the use of words, including gestures, facial expressions, and body language.