During sprinting, the propulsive phase lasts 3 times as long as the breaking phase. During this specific ground contact, the 75 kg individual is trying to move the body from a resultant velocity of 7.5 m/s pointed down and to the right at an angle of 10 degrees above the horizontal to a resultant velocity of 8.0 m/s velocity pointed up and to the right at the same angle. The breaking impulse lasts 0.06 seconds. During the breaking impulse, the horizontal velocity decreases by 1.0 m/s and the vertical velocity goes to zero. What are the average horizontal GRF values needed during both the breaking and propulsive phases to ensure the runner achieves their desired result during the stance phase if the coefficient of friction between the shoe and the track is 0.22?