In a park, Ravi and Keiko are standing with their backs to a strong wind. Ravi has a loose-fitting t-shirt on, and Keiko is wearing a wide-brimmed hat. What happens to Ravi's t-shirt and Keiko's hat when a gust of wind blows from behind them? Provide a very brief response.
Ravi's loose-fitting t-shirt will billow out in front of him as the wind enters from the bottom of the shirt at the back and gets trapped, creating a balloon effect. Keiko's hat, being wide-brimmed and more likely to catch the wind like a sail, will likely be lifted off her head and blown forward unless it is securely fastened to her head. The wind exerts a force on the surface of the hat, and because the brim extends outward, it provides a larger surface area for the wind to push against, leading to a greater chance of the hat being blown away.