1. The problem statement, all variables and given/known data At a certain instant a particle (mass=0.5 kg) is moving in the +x direction with velocity 14 m/s. During the next 0.15 seconds a constant force acts on the particle, with Fx= −8 N and Fy= Fz = 0 N. What is the magnitude of the momentum of the particle (in kg*m/s) at the end of this 0.15 second interval? 2. Relevant equations pf = pi + Fnet*deltat 3. The attempt at a solution I am at a complete lose as to what to do. I think I have to add the velocity and the Fx together. After that, I have no idea.