03-13-2009, 12:51 AM
kinetic energy = 1/2(m)(v)(v)
So let's say an object is moving at 20,00 mph. The space station is also moving pretty fast itself, probably very close to the same velocity as the object. It's the relative differences in velocity that matter. Of course if they're moving towards each other... velocity is a vector.
momentum = mass X velocity
So let's say an object is moving at 20,00 mph. The space station is also moving pretty fast itself, probably very close to the same velocity as the object. It's the relative differences in velocity that matter. Of course if they're moving towards each other... velocity is a vector.
momentum = mass X velocity