Multiple Choice
Neglecting air resistance, a ball projected straight upward so it remains in the air for 10 seconds needs an initial speed of
A) 50 m/s.
B) 60 m/s.
C) 80 m/s.
D) 100 m/s.
E) 110 m/s.
Correct Answer:
Verified
Correct Answer:
Verified
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