A Block with Mass M, on the End of a String

question 16

Multiple Choice

A block with mass M, on the end of a string, moves in a circle on a horizontal frictionless table as shown. As the string is slowly pulled through a small hole in the table:

• A) the angular momentum of M remains constant
• B) the angular momentum of M decreases
• C) the kinetic energy of M remains constant
• D) the kinetic energy of M decreases
• E) none of the above

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Definitions:

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Black New York refers to the African American history, culture, and community in New York City, which has been influential in the social, cultural, and political development of the city and the nation, with historical significance in movements like the Harlem Renaissance.

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