Answer:
0.64 s
Explanation:
[tex]T=\sqrt{\frac{2d}{g}}[/tex]
d is displacement on the y-axis.
g is gravity.
Assuming we're on Earth, g is [tex]9.807 m/s^{2}[/tex]
The arrow starts 2 m off the floor, and will assumingly land on the ground at
0 m, so d then is 2 m.
[tex]T=\sqrt{\frac{2(2)}{9.807}} = 0.64 s[/tex]
