A shot putter launches a shot of 7.120 kg by pushing it all along a straight line of length 1.650 m and at an angle of 34.80° from the horizontal, accelerating the shot to the launch speed from its original speed of 2.500 m/s (that is due to the athlete's preliminary motion). The shot leaves the hand at a height of around 2.110 m and at an angle of 34.80° and it lands at a horizontal distance of around 13.50 m. Determine the magnitude of the athlete's average force on the shot throughout the acceleration stage?