This is a test prep practice question. I have not been able to figure out the calculations. A baseball is thrown vertically with a speed of 3m/s. Find the total distance that the ball has been in flight when it has traveled 50cm. The answer is 0.398 seconds. But I can't figure out how to solve the problem. I converted 50cm to 0.5m. I used the formula for linear motion equation: X-X0 = V0 t + (at^2)/2. Where V0+ 3 m/s a= 9.8 m/s2 and X-X0 = 0.5 meters From here it should just be plugg and chugg but I am not getting it right... Can someone please work out the problem for me. Or tell me if I am using the wrong equation to try and solve this problem. Thank you..