Thursday, September 13, 2007

A Physics Problem


You're in a rowboat in a swimming pool,

and you're holding a cannonball.

If you throw the ball into the pool,

will the water level rise or fall?

Hears the answer,


Solution:

The water level will fall.

When the cannonball is in the boat,

it displaces its weight in water.

When it's in the pool,

it displaces only its volume.