Two cups are filled to the same level with water. One of the two cups has a ping pong ball floating in it. Which of the two cups weighs more?
2007-07-26 20:20:44 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Trick question. Both cups weigh the same, since you didn't ask how much they weigh with the contents. Har har.
But from face value, the cup with the ball weighs more as long as no water is displaced outside of the cup.
2007-07-26 20:23:56 · answer #1 · answered by Xander Crews 4 · 0⤊ 0⤋
The cup without the ball. The ball displaces more water than its own weight. So, if the level of water in both the cups is same, it means that the cup with the ball has less water.
2007-07-26 20:30:51 · answer #2 · answered by Swamy 7 · 0⤊ 0⤋
Asuming both cups weigh the same empty AND no water spills over the side the one with the ball is heavier by the weight of the ball.
2007-07-26 20:32:15 · answer #3 · answered by microbe 2 · 0⤊ 0⤋
They weight the same because the ping pong ball will displace the amount of water equal to the weight of the ball.
2007-07-26 20:23:52 · answer #4 · answered by suigeneris-impetus 6 · 0⤊ 0⤋
They both weigh the same because the water is supporting the ball and doesn't effect the weight of the cup...or something.
I'm just guessing.
2007-07-26 20:24:09 · answer #5 · answered by Anonymous · 0⤊ 1⤋
are the two cups identical? this is a trick question.
2007-07-26 20:27:21 · answer #6 · answered by Eliash 1 · 0⤊ 0⤋
too many unknown variables
2007-07-27 01:12:13 · answer #7 · answered by Mobius1 4 · 0⤊ 0⤋