Final answer:
The load must be on the bottom when traveling down a ramp or slope to maintain stability and prevent tipping.
Step-by-step explanation:
When traveling down a ramp or slope with a load, the load must be on the bottom to maintain stability and prevent tipping. This is because the weight of the load creates a downward force that helps keep the load grounded and prevents it from rolling or sliding off the slope. Placing the load on the top or higher up on the slope can lead to instability and potential accidents.