A rock is thrown straight up with an initial velocity of 24.5 m/s.What time interval elapses between the rock's being thrown and its return to the original launch point? (Acceleration due to gravity is 9.80 m/s2. )
A) 4.00 s
B) 5.00 s
C) 8.00 s
D) 10.0 s
Correct Answer:
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