Final answer:
The speed that increases the cost of transport is the speed that decreases the distance that can be traveled with a given amount of energy.
Step-by-step explanation:
The speed that increases the cost of transport is the speed that decreases the distance that can be traveled with a given amount of energy. This is because the energy required to move an object increases as its speed increases, leading to greater fuel consumption and higher costs for transportation.
For example, when driving a car at higher speeds, the air resistance or drag opposing the car's motion increases exponentially, requiring more fuel to maintain the higher speed. Similarly, air travel becomes more costly as the distances covered are often quite large, resulting in substantial energy expenditure despite higher speeds.
Therefore, it is more cost-effective to travel at lower speeds to maximize the distance that can be covered with a given amount of energy.