Question

B on the Moon (g =1.6 N/kg)

8 What factors affect the drag force that acts on a high-speed train?

Answer 1

The drag force acting on a high-speed train is influenced by the train's shape, speed, and surface area.

Step-by-step explanation:

The drag force that acts on a high-speed train is affected by several factors:

1. Shape of the train: The aerodynamic shape of the train can greatly influence the drag force. A streamlined shape with minimal drag-inducing features, such as rounded edges and a pointed front, can reduce drag.
2. Speed of the train: The drag force increases with the square of the train's velocity. As the train goes faster, the air resistance it encounters also increases.
3. Surface area: A larger surface area exposed to the oncoming air results in greater drag. Reducing the surface area can help decrease the drag force.

By considering these factors, engineers and designers can work to optimize the train's shape and minimize drag, leading to improved efficiency and reduced energy consumption.

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