An Object of Mass M Is Hanging by a String

question 4

Multiple Choice

An object of mass m is hanging by a string from the roof of an elevator. The elevator is moving downward and slowing down. What is the tension in the string?

• A) greater than mg
• B) less than mg
• C) equal to mg
• D) depends on the speed of the elevator

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Definitions:

Adverse Selection

A situation in which one party in a transaction has more or better information than the other, often leading to inefficiencies.

Market Wage

The prevailing wage rate for labor in a particular market, influenced by supply and demand.

Pairwise Majority Voting

A voting system in which each option is compared head-to-head with every other option, and the option that wins the most comparisons is selected.

Transitivity

The concept in mathematics and logic that if relation "A" is related to "B", and "B" is related to "C", then "A" is related to "C".