A 500-G Ball Moves in a Circle 40 Cm in Radius

question 39

Multiple Choice

A 500-g ball moves in a circle 40 cm in radius at a speed of 4 m/s. The centripetal force on the ball is

• A) 10 N.
• B) 20 N.
• C) 40 N.
• D) 80 N.

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Definitions:

Special-Interest Effect

A situation where policy decisions primarily benefit a small group, often at the expense of the larger public.

Spillover Costs

Costs incurred by third parties as a result of economic activities that are not reflected in market transactions.

Concentrated Benefits

Advantages that are significantly focused on a small group rather than being distributed widely across many individuals.

Diffuse Costs

Costs that are spread out over many consumers or taxpayers, making them hard to identify and attribute to any single action.