A Gyroscope Has a Moment of Inertia of 0

question 26

Multiple Choice

A gyroscope has a moment of inertia of 0.14 and an initial angular speed of 30 rad/s. Friction in the bearings causes its speed to reduce to zero in 30 s. What is the value of the average frictional torque?

• A) 3.3 * 10^-2 N M
• B) 8.1 *10^-2 N M
• C) 14 * 10^-2 N M
• D) 7.0 * 10^-2 N M

---

Definitions:

Bond Selection

The process of choosing bonds for investment based on factors such as yield, maturity, credit quality, and issuer.

Unique Risk

Also known as unsystematic or idiosyncratic risk, it refers to the risk associated with a particular company or industry that can be mitigated through diversification.

Securities

Financial vehicles denoting an ownership interest in corporations available on public exchanges, debt obligations held against governmental entities or businesses through bonds, or potential ownership through options trading.

Diversify

Diversify refers to the strategy of spreading investments across various financial instruments, industries, and other categories to reduce exposure to risk.