A CD with a Diameter of 12 $\times$ 10^-3 M/s
B) 6

question 41

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 tangential velocity of a point 4.0 cm from the center at the time 25.0 seconds from the start?

• A) 5.2 \(\times\) 10^-3 m/s
• B) 6.7 \(\times\) 10^-3 m/s
• C) 7.2 \(\times\) 10^-3 m/s
• D) 8.5 \(\times\) 10^-3 m/s
• E) 9.7 \(\times\) 10^-3 m/s

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Definitions:

Corners

Points at which two or more lines or edges meet, often used in the context of geometry or spatial planning.

Profit

The financial benefit gained when the amount of revenue gained from a business activity exceeds the expenses, costs, and taxes needed to sustain the activity.

Restriction

A rule or condition that limits or controls what can be done.

Quantity

The amount or number of material or immaterial things considered as a unit.