How does Hydraulic Press stop so fast after shaterring something? Why isn’t there any momentum?
In: 5397
Take a glass and put a ping pong ball in it. Then slowly fill up the glass with water.
The ball will rise up, pushed by the water. When you stop filling the water, there isn’t any significant momentum to keep pushing the ball.
Now replace the ball with a cylinder that fits snugly in the glass, but not so tight it can’t move given a little push. Then put a small hole in the bottom of the glass connected to a piece of tube. Fill the glass with water through the tube.
Again, the cylinder will rise up and when water stops being filled, there’s still no real momentum to continue pushing the cylinder so it stops.
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