A Stunt Pilot Performs a Circular Dive of Radius 800

question 3

Multiple Choice

A stunt pilot performs a circular dive of radius 800 m. At the bottom of the dive (point B in the figure) the pilot has a speed of 200 m/s which at that instant is increasing at a rate of 20 m/s2. What acceleration does the pilot have at point B?

• A)(50i + 20j) m/s2
• B)(20i -50j) m/s2
• C)(20i + 50j) m/s2
• D)(-20i + 50j) m/s2
• E)(-50i + 20j) m/s2

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Definitions:

Halo Effect

A cognitive bias where the perception of one positive characteristic influences the assumption of other positive traits in the same individual.

Sleeper Effect

A phenomenon where a message that initially has little impact becomes more persuasive over time, typically because of a delay in the message's perceived importance or credibility.

Psychological Reactance

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