A Stunt Pilot Performs a Circular Dive of Radius 800

question 13

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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