A Metal Bar Is Hanging from a Hook in the Ceiling

question 85

Multiple Choice

A metal bar is hanging from a hook in the ceiling when it is suddenly struck by a ball that is moving horizontally (see figure) .The ball is covered with glue,so it sticks to the bar.During this collision

• A)the angular momentum of the system (ball and bar)is conserved about the hook because only gravity is acting on the system.
• B)the angular momentum of the system (ball and bar)is not conserved because the hook exerts a force on the bar.
• C)the angular momentum of the system (ball and bar)is conserved about the hook because neither the hook nor gravity exerts any torque on this system about the hook.
• D)both the angular momentum of the system (ball and bar)and its kinetic energy are conserved.
• E)both the linear momentum and the angular momentum of the system (ball and bar)are conserved.

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Definitions:

Dissemination Costs

Expenses associated with the distribution or sharing of information to the public or specific target audiences.

Collection

An effort to accumulate amounts due from debtors, or the process of recovering financial obligations.

Conceptual Framework

A system of ideas and objectives that guides the development of standards and practices in financial reporting and accounting.

Financial Reporting

Financial reporting involves the disclosure of financial information to various stakeholders about the financial performance and position of an organization over a specific period of time.