A CD with a Diameter of 12

question 69

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 acceleration. What is the radial acceleration of a point 4.0 cm from the center at the time 10.0 seconds from the start?

• A) 2.0 m/s²
• B) 1.8 m/s²
• C) 1.0 m/s²
• D) 0.9 m/s²
• E) 0.6 m/s²

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Definitions:

Capacity

The maximum level of output that a company can sustain to produce in a given period under normal circumstances.

Sunk Costs

Sunk costs are past expenses that have already been incurred and cannot be recovered, and thus should not affect future business decisions.

Opportunity Costs

The loss of potential gain from other alternatives when one alternative is chosen.

Cost Accounting System

A framework used to record, analyze, and allocate costs associated with a company's operations and production processes.