Solve.If an object is propelled upward from ground level with an initial velocity of 38.6 feet per second, its height, h, in feet, t seconds later is given by the equation
After how many seconds does the object hit the ground? (Round your answer to the nearest tenth, if necessary.)
A. 4.8 sec
B. 0.4 sec
C. 2.4 sec
D. 1.2 sec
Answer: C
Mathematics
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