A Brass Ball Is Shot Vertically Upward from the Surface

question 53

Multiple Choice

A brass ball is shot vertically upward from the surface of an atmosphere-free planet with an initial speed of 20.0 m/s. One second later, the ball has an instantaneous velocity in the upward direction of 15.0 m/s.
-How long does it take the ball to reach its maximum height?

• A)2.0 s
• B)2.3 s
• C)4.0 s
• D)4.6 s
• E)8.0 s

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Definitions:

Cognitive Dissonance

The conflict (i.e., remorse) that buyers feel after making a major purchase.

Marketing Research

The process of gathering, analyzing, and interpreting information about a market, and about the past, present, and potential customers for the product or service.

Cognitive Dissonance

A psychological term referring to the mental discomfort experienced when holding two or more conflicting beliefs, values, or ideas simultaneously.

Market Research

The process of gathering information about consumers that will improve marketing efforts.