A Circular Disk of Radius 2

question 29

Multiple Choice

A circular disk of radius 2.0 m rotates, starting from rest, with a constant angular acceleration of 20.0 rad/s². What is the tangential acceleration of a point on the edge of the disk at the instant that its angular speed is 1.0 rev/s?

• A)40 m/s²
• B)79 m/s²
• C)110 m/s²
• D)120 m/s²
• E)zero m/s²

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Definitions:

Rapidly Moving

Describes something happening or progressing quickly or at a fast pace.

Traumatic Memories

Memories of events that caused significant psychological distress, often leading to conditions such as post-traumatic stress disorder (PTSD).

Therapeutic Environment

A safe and healing setting designed to facilitate recovery, growth, or well-being, often used in mental health, counseling, or healthcare settings.

Empathic

The capability to comprehend and empathize with someone else's emotions.