the closer to the surface a swimmer swims, the lower the pressure on the swimmer, explain why

The pressure experienced by a swimmer in water is due to the weight of the water above them. This pressure increases with depth because as you go deeper, there is more water above you, and therefore more weight pressing down.

Here are the steps to understand this:

1. Pressure in fluids, such as water, is calculated by the equation P = ρgh, where P is the pressure, ρ is the fluid density, g is the acceleration due to gravity, and h is the height of the fluid above the point in question.

2. When a swimmer is closer to the surface, the height (h) of the water above them is less. According to the equation, if h is smaller, the pressure (P) is also smaller.

3. Therefore, the closer to the surface a swimmer swims, the lower the pressure on the swimmer. This is because there is less water above them to exert pressure.

4. Conversely, the deeper a swimmer goes, the greater the pressure, because there is more water above them to exert pressure.

So, the depth at which a swimmer swims directly affects the pressure they experience due to the weight of the water above them.