If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.8s, then what is the distance that the sled travels? So, my given: vf= 444 m/s t= 1.8 s I don 't know what equation to use to find distance. I tried: d=vi+1/2*at2 , but that didn't work. I just really don't know what equation to use. The answer should be 400m. Any help would be much appreciated.