A Pendulum of Length L Is Suspended from the Ceiling

question 64

Multiple Choice

A pendulum of length L is suspended from the ceiling of an elevator.When the elevator is at rest the period of the pendulum is T.How does the period of the pendulum change when the elevator moves upward with constant acceleration?

• A)The period does not change.
• B)The period increases.
• C)The period decreases.
• D)The period becomes zero.
• E)The period increases if the upward acceleration is more than g/2 but decreases if the upward acceleration is less than g/2.

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Definitions:

Variable Cost

Expenditures that fluctuate based on production or sales volume, for instance, materials and manpower.

Required Rate

The minimum rate of return on an investment that a manager or investor is willing to accept, considering its risk.

Marginal Tax Rate

The tax rate that applies to the last dollar of the taxpayer's income, indicating the rate of tax on any additional income earned.

Fixed Cost

Expenses that do not change with the volume of production or sales, such as rent, salaries, and insurance.