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rookie1ja

Ball in a Hole

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If you paid attention it is a ping pong ball, and I would fill the hole with water, the ball will float up.

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Guest

If the pipe is slightly wider than the ping pong ball and it has a sealed bottom, The solution is just to put water untill the ball floats up........... Simple huh?

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One could simply drop a length of tubing down the hole until it touches the top of the ball and create a vaccuum by sucking on the tube while you bring the tubing back up. Or one could use a suction tip from a toy arrow on a long dowel to attach to the ball. Or use compressed air to blow under the ball,or drop rubber cement down the hole and then a weighted string to stick to the ball. Or...................many way I suppose.

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You cannot suck the ball out, the pipe is finite according to the question, thus a vaccuum lock would be created if you did so. You cannot presume to have the strength to turn the entire concrete base upside down, according to the picture the concrete base is the ground itself. However filling the pipe with water (again, it has a 30cm finite area) would cause the ball to float to the top, allowing the person to simply remove it by hand once it has reached the surface.

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The pipe is sealed on one end. since it is secured in the ground the pipe cannot be turned over. Ping Pong Balls float. Fill the tube with water.

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The puzzle states that the pipe is closed on one end and stuck in pavement, so presumably those responses that speak of opening the pipe underneath, seem to miss the point.

Ping-pong balls float and the pipe width is slightly greater than the ball. So, pouring water in the pipe will cause it to fill up around the ball and will bring it to the top with no damage done.

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Guest

1

Fill the pipe with water and the ball will float to te top.

or

2

Put some prestic(tictac) on the end of a stick and use it to take it out.

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Guest

Just pour water into the hole and as that's a table tennis ball, would come up just like that.....

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This one is easy. Insert a small tube (small enough to slip past the ball) and insert forced or compress air underneath it to force it up and out of the hole

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the pipe is straight, people, and it can't be moved..fill the pipe with water because it has a metal bottom, ball should rise to the top..

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