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When strong/high speed wind blows, an um...

When strong/high speed wind blows, an umbrella held upright at times gets upturned. Explain the reason.

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### Step-by-Step Solution: 1. **Understanding the Scenario**: When a strong or high-speed wind blows, it creates a situation where the umbrella is held upright. The umbrella is designed to catch the wind, which can lead to it being upturned. 2. **Role of Air Pressure**: The key factor in this scenario is air pressure. Air pressure is the force exerted by the weight of air above us. It can vary depending on the speed of the wind. 3. **Effect of High-Speed Wind**: When the wind blows at high speed, it moves over the surface of the umbrella. According to Bernoulli's principle, as the speed of the air increases, the pressure exerted by that air decreases. ...
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