The Position of the Center of Mass of a System

question 36

Multiple Choice

The position of the center of mass of a system of particles moves as x = 4.5 t + 2.4 t² + 1.1 t³, where x is in meters.If the system starts from rest at t = 0, what is its velocity at t = 3.0 s?

• A)8.0 m/s
• B)21 m/s
• C)49 m/s
• D)64 m/s
• E)65 m/s

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Liabilities arising when a business receives payment for services that have not yet been performed, recognized as revenue over time as services are provided.

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Accounting Cycle

A series of steps taken in order to prepare financial statements, starting from transactions and ending with closing the books.

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A financial statement that lists all accounts and their balances after closing entries have been made, usually the final step in the accounting cycle.