1. The problem statement, all variables and given/known data A child accidentally drops her doll from a bridge suspended 50m above a fast moving river. Assuming the doll never reaches terminal velocity, how many seconds will it take for the doll to hit the water? 2. Relevant equations x=x0+ v0t + 0.5*at2 3. The attempt at a solution Using acceleration formula: x=x0+ v0t + 0.5*at2 It should be 0=(50M)+(0m/s)t+0.5*(-9.8m/s2) Which would give me 3.194382825 seconds. The textbook's answer is 2.3s. So after a bit of exploration I realized that the acceleration isn't supposed to be halved. That brings me to the question why isn't the acceleration halved like the example and other questions using the formula?