BrainDen.com - Brain Teasers

# Ball

## 330 posts in this topic

Guest

Throw the ball straight up and let the laws of gravity return it to you. There was nothing that said it had to leave the earth or to account for wind or anything like that.

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Guest

throw it up and it will come back to you. assuming you don't have THAT much strength to provide it with the force required to reach the escape velocity

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Guest
Well, technically speaking, to throw the ball straight up and to let it orbit the planet once first are one and the same. In both cases, you accelerate the ball away from gravity without achieving escape velocity, then gravity pulls it back around in an orbit. Standing on Earth and throwing it straight up, you have a very eccentric orbit that crosses paths with the planet's surface--meaning it'll come out of orbit very rapidly before it actually makes a complete revolution--but you are essentially doing the same thing either way.

Also, technically speaking the ball hits billions of air molecules on the way up, but the scenario would work the same without air. If you want to allow contact with air, you could spin it really, really fast, and make it come back to you like a boomerang, or do like Clarinetman suggested and throw it into a stream of moving air. I've actually shot arrows at an angle away from me so they came back to me with the wind, but I was still relying a lot on gravity.

Or you could have a transforming ball that converts to a flying machine after you throw it, like those little bombs the Green Goblin uses in Spiderman!

Whoa, dude, that was complicated! I read that and i think uhhhhhhh.... until it gets to the spiderman part at least!

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Guest

Or you could just throw it at your face! haha!

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Guest

oh, how do i explain this riddle? Wait, i know, simple! you throw the dang ball straight up!

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Guest

throw the ball straight up and it will come back down to u

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Guest

possibly...the ball is metal and you have a powerful magnet in your hand. i dont know if that counts or not

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Guest

throw the ball straight up gravity will bring it back at the same force

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Guest

You are magic and you will the ball to come back...

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Guest

wat if you threw the ball up in the air and it fell down on the ground. that would be hitting SOMETHING, right?

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Guest

just throw the ball in the air straight above you

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Guest

throw it in the air LOL

x

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1.) You throw the ball at a hill and it rolls back down

2.) The ball never hits anything so you throw it straight up

3.) Or, taking the puzzle entirely seriously, the ball never hits anything so it never hits the ground therefore going clear aroung the planet.

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Guest

it doesn't say what the ball is made of. suppose it was a "ball of water" It wouldn't go anywhere??

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Guest

Throw the ball straight up....ie perpendicular to the ground.

;-)

a1

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Guest
Ball - Back to the Logic Puzzles

How can you throw a ball as hard as you can and have it come back to you, even if it doesn't hit anything, there is nothing attached to it, and no one else catches or throws it?

Ball - solution

Throw the ball straight up in the air.

Thats right. Because what goes up, must come down. It is the law of gravity![/font]

Guest

In the air

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Guest

You throw it straight up, into the air, and gravity does its stuff.

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Guest

throw it as hard as you can...into the air...up...and it will come back to you w/o touching anything

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Guest
Ball - Back to the Logic Puzzles

How can you throw a ball as hard as you can and have it come back to you, even if it doesn't hit anything, there is nothing attached to it, and no one else catches or throws it?

Ball - solution

Throw the ball straight up in the air.

throw it straight up or is there more to it?

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Guest

Definently. You gotta love that gravity. You chuck the ball straight up, it flies away from you, then gravity starts pulling it back down. It fulfills all the requirements. Nobody else touches it. The sky shouldn't be full of things for the ball to hit into (unless you're in the middle of a snowball fight) and there's nothing attached to it.

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Guest

just throw the ball up in the air....

guys this is so simple <_< <_< <_< <_< <_<

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Guest

you throw it up into the air then it falls back to you!

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Guest

you throw the ball up and it will come back down to you

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Guest

throw it in the air..... then it will come back to you without breaking any rules