A Pulley with a Radius of 3

question 49

Multiple Choice

A pulley with a radius of 3.0 cm and a rotational inertia of 4.5 *10^-3 kg.m² is suspended from the ceiling.A rope passes over it with a 2.0-kg block attached to one end and a 4.0-kg block attached to the other.The rope does not slip on the pulley.At any instant after the blocks start moving the object with the greatest kinetic energy is:

• A)the heavier block
• B)the lighter block
• C)the pulley
• D)either block (the two blocks have the same kinetic energy)
• E)none (all three objects have the same kinetic energy)

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Definitions:

Sharpe's Measure

A ratio used to evaluate the risk-adjusted return of an investment, comparing its excess return over the risk-free rate to its standard deviation of returns.

Risk-Free Return

The theoretical return attributed to an investment with zero risk, often associated with the return on government bonds.

Monarch Stock Fund

A hypothetical or specific mutual fund focusing on stocks, possibly structured around companies with substantial market influence or leadership.

Characteristic Line

In finance, it's a line generated in a scatterplot by regressing the returns of a security against the returns of the market, used to assess the security's sensitivity to market movements.