Salmon swimming up a river to their spawning grounds, leap over all sorts of obtacles. The unofficial salmon-altitude record is a 3.56m jump. Assuming that the salmon took off at a 45 degree angle, what was the speed at which it was emerging from the water? Xo = 0m Yo = 0m Y = 3.56m a = 9.8m/s^2 X = ??? v = ??? and I thought of using this formula : Y = Yo + VYo(t) + (0.5)(a)(t)^2 but I couldn't because I dont have t.