Solve the problem.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = , where t is measured in seconds. If an object falls 78.4 meters before it hits the ground, find the time it took for the object to fall.

A. 16 sec
B. 5 sec
C. 7 sec
D. 4 sec


Answer: D

Mathematics

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