Question

How does air cushion reduce friction. Give example and briefly explain about the example. Please do it fast I will mark you as the brainliest. Please guys please.

Answer 1

Answer

Making grooves in the shoes increases friction.

Polishing rough surfaces makes it smooth, thus reducing friction. Wheels and ball bearings create rolling friction which has the least magnitude compared to sliding and static friction.

Air cushion makes a layer of air between two surfaces, which helps in reducing friction.

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Answer 2

Answer:

The cushion is filled with air. As friction experienced by solid on a liquid the hovercraft fitted on the top can move freely. This way cushion reduces friction.

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