A CD with a Diameter of 12

question 26

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 10.0 seconds from the start?

• A) 0.50 rad/s
• B) 0.40 rad/s
• C) 0.30 rad/s
• D) 0.20 rad/s
• E) 0.10 rad/s

---

Definitions:

Derivatives Market

A financial market for securities whose value derives from the value of other underlying financial assets, such as stocks, bonds, or commodities.

Interest Rate

The amount charged, expressed as a percentage of principal, by a lender to a borrower for the use of assets.

Futures Markets

Exchanges that facilitate the buying and selling of futures contracts, which are agreements to buy or sell assets at a future date at a predetermined price.

Leverage

The use of borrowed money to increase the potential return of an investment, which can also magnify the potential loss.