1. The problem statement, all variables and given/known data A rifle is held rigidly by a supporting test frame. When fired horizontallly, a 50 g bullet attains a muzzle exit velocity of 500 m/s if it takes 0.003 s for the bullet to travel the length of the barrel, determine the average horizontal force applied to the gun by the test frame during firing. 2. Relevant equations 3. The attempt at a solution I know that the answer is 8.33 kN but I do not know how to solve it. I think that we evaluate the forces on the x axis, there are no forces on the y axis but i am not sure, any help?