In the end, we would end up with two copies of the kinematic equations, one in the x-direction and one in the y-direction, If gravity is the only force acting on the object, we can say right away what...In the end, we would end up with two copies of the kinematic equations, one in the x-direction and one in the y-direction, If gravity is the only force acting on the object, we can say right away what the magnitude of the acceleration is, a=g=9.81 m/s^2. This will greatly simplify the kinematic equations, but we have to be a little careful - just because there is no acceleration in the x-direction does not mean there is no motion in the x-direction.
