Uniform Circular Motion: a Ball of Mass 5

question 27

Multiple Choice

Uniform circular motion: A ball of mass 5.0 kg is suspended by two wires from a horizontal arm that is attached to a vertical shaft, as shown in the figure. The shaft is in uniform rotation about its axis. The rate of rotation is adjusted until the tensions in the two wires are EQUAL. At that speed, the radial acceleration of the ball is closest to

• A) 4.9 m/s²
• B) 5.9 m/s²
• C) 6.9 m/s²
• D) 7.9 m/s²
• E) 9.9 m/s²

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Definitions:

Inverse Demand Function

A mathematical function that expresses the price of a good or service as a function of the quantity demanded, illustrating how price changes with variations in demand.

Pretzels

A type of baked bread product made from dough most commonly shaped into a twisted knot, known for its distinctive flavor and texture.

Compensating Variation

An economic concept describing the amount of additional income that would leave someone as well off after a price change as they were before it.

Price of Earrings

The amount of money required to purchase earrings, which can vary based on materials, brand, and design.