3) Explain how the idea of conservation of energy was used to create the computational model. Mechanical Energy Modeling During a flood, a tree trunk of mass 100 kg falls down a waterfall. The tree starts at a velocity of 0 m/s before it falls. The waterfall is 5m high. A) Draw a diagram (model) to represent this situation. B) Label three points on the diagram. Point A should be at the top of the waterfall. Point B Can go at any point between the top and bottom. Point C should be at the bottom. What height have you chosen for point B