A bullet is fired straight up from a gun with initial velocity 1240 feet per second at an initial height of 8 feet. Use the formula h=-16t^2+v0t+8 , where h is the height, t is time, and v0t is the initial velocity, to determine how many seconds it will take for the bullet to hit the ground. (That is, when will h=0 ?) Round your answer to 2 decimal places.