A feather is dropped on the moon from a height of 1.40 meters. The acceleration of gravity on the moon is 1.67 m/s^{2} Determine the time for the feather to fall to the surface of the moon. So, I wrote my given: d=1.4 m a= 1.67 m/s^{2} both initial and final velocity= 0 I know I am looking for time, but I have no idea what equation to use. I tried: v_{f}= v_{i}+at , but I didn't get the right answer. The answer should be 1.29 s. Any help would be much appreciated, please and thank you!:)