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Neglecting Air Resistance, How Fast Must You Toss a Ball

Question 75

Multiple Choice

Neglecting air resistance, how fast must you toss a ball straight up in order for it to take 6 seconds to return to its initial level?

A) 5 m/s
B) 10 m/s
C) 20 m/s
D) 30 m/s
E) more than 30 m/s

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