From the kinematic equations:
Δy = v0t + (1/2)gt2
125 = 0 + (1/2)(9.81)t2
5. A ball is thrown 125 meters upward and then falls the same distance back to Earth. Neglecting air resistance, its total time in the air is
A) about 10 seconds.
B) about 15 seconds.
C) about 5 seconds.
D) more than 20 seconds.
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