How does a big sail help a buggy go faster?

A big sail helps a buggy go faster by capturing more wind, which increases the force exerted on the sail and propels the buggy forward with greater speed. The larger surface area allows for more efficient energy transfer from the wind to the buggy, especially in favorable wind conditions. Additionally, a bigger sail can help the buggy maintain stability and momentum, allowing it to glide more smoothly over the ground. However, it's important to balance sail size with control to avoid tipping or losing maneuverability.