Figure 1 shows two tractors pulling a heavy tree trunk.
The tree trunk is connected to the tractors with tow ropes.
The tension, TTT, in each of the ropes has a magnitude of 15 kN15\text{ kN}15 kN.
The ropes are at right angles to each other.

Draw a vector diagram and use it to determine the magnitude of the resultant force that the tractors exert on the tree trunk.