Answer:
2 seconds
Step-by-step explanation:
You have to first substitute d for 64 because the distance it dropped is 64ft:
64 ÷ 16 = [tex]t^{2}[/tex]
Now, simplify the right side:
4 = [tex]t^{2}[/tex]
Finally, take the square root of both side:
[tex]\sqrt{t^{2} }[/tex] = [tex]\sqrt{4}[/tex]
t = 2
Since time is in seconds, this means that it took 2 seconds.
