Impulse Momentum Theorem!! 1. The problem statement, all variables and given/known data A student (m = 63 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.0180 s. The average force exerted on him by the ground is +16000. N, where the upward direction is taken to be the positive direction. From what height did the student fall? Assume that the only force acting on him during the collision is that due to the ground. 2. Relevant equations impulse momentum theorem 3. The attempt at a solution i did it and got vfinal=4.57 and put that over the time, 0.018sec and got 254 m but thats not right.... i dont know why...anyone able to help?