A gust of wind forces a rock to fall off a cliff that's 20 feet high. This is represented by the function h (t) = - 16t2 + 20, where t represents the time measured in seconds, and h represents height above the ground. Approximate how many seconds it takes for the rock to hit the ground.
Answer Options:
A.) 1.25 seconds
B.) 1.5 seconds
C.) 1.12 seconds
D.) 1 second
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Home » Mathematics » A gust of wind forces a rock to fall off a cliff that's 20 feet high. This is represented by the function h (t) = - 16t2 + 20, where t represents the time measured in seconds, and h represents height above the ground.