Extracted text: (c) The engine inside the tractor as shown in Figure 4 is no longer working. You then attached a cable to the 50 kg tractor and started pulling it from rest until it achieves a velocity of v = 4 m/s with a distance of 5 m to the right. Given that the coefficient of kinetic friction (Hx) between the tractor and the ground is 0.3, calculate the magnitude of force P acting on the tractor. 30° Figure 4