Check this out!
Why does it look like the water opens up around him as he jumps into the water?
The answer is water displacement.
Let’s have a closer look.
When you jump into water, you are taking the place of the water. The pressure (and force) displaces it.
The bigger surface area of water you take the place of, the bigger the displacement and the bigger the splash.
Since the pressure of your body goes into the water at different directions, the displacement (and splash) comes up and out of the water in different directions.
Check out this water displacement – doesn’t it seem as if a hole is swallowing him up?
Another way of thinking about it would be to compare a dive and a cannonball.
A dive, done properly, disturbs a small surface area, displaces little water and has a small splash while a cannonball disturbs a bigger surface area, displaces a lot more water and has a big splash.
Use your imagination and picture how much water would be displaced by this crazy jump!
Lots of splash and water displacement or a tiny splash and little water displacement?
How about this one?
I’ve always found water and science fascinating – how about you?
Here’s another question – do you think the speed of entry affects water displacement too?