Multiple Choice
A ball is thrown upwards.Neglecting air resistance,what initial upward speed does the ball need to remain in the air for a total time of 10 seconds?
A) about 50 m/s
B) about 60 m/s
C) about 80 m/s
D) about 100 m/s
E) about 110 m/s
Correct Answer:
Verified
Correct Answer:
Verified
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