You are in a boat in a pool with a rock in your hand. You throw the rock into the pool. Does the water level rise, drop, or stay the same?
depends on how big the pool is and how accurately you can measure the water rise
you're already in the pool with the rock, so the water displaced is the same...this other guy is stupid
If the rock were neutrally buoyant the water level would remain the same. It is heavier than water which causes it to displace more than its own volume while in the boat compared to at the bottom of the lake. Therefore the water level of the lake would go down.
May 4, 2010