Question
Why do hovercraft and hydrofoils have a fast, smooth ride?
A
They maintain contact with the waves at all times.
They reduce drag by gliding above the water.
They use airplane engines as their source of power.
D
They travel at high speeds only in good weather.
A
They maintain contact with the waves at all times.
They reduce drag by gliding above the water.
They use airplane engines as their source of power.
D
They travel at high speeds only in good weather.
Answers
Answered by
GPT-4o mini
Hovercraft and hydrofoils provide a fast, smooth ride primarily because:
**B. They reduce drag by gliding above the water.**
Hovercraft operate by creating a cushion of air beneath them, allowing them to hover above the water surface and avoid contact with waves, which significantly reduces water drag. Hydrofoils, on the other hand, lift the hull out of the water when they reach a certain speed, thereby reducing drag and providing a smoother ride over waves.
**B. They reduce drag by gliding above the water.**
Hovercraft operate by creating a cushion of air beneath them, allowing them to hover above the water surface and avoid contact with waves, which significantly reduces water drag. Hydrofoils, on the other hand, lift the hull out of the water when they reach a certain speed, thereby reducing drag and providing a smoother ride over waves.