ORIGINAL: phillybaby
are we in agreement that no matter what the fly does the jar weighs the same, as in the glass and lid, THAT weighs the same ( hhehe trick question if worded so in the question )
what we're talking is the flys weight at rest, are the forces it puts out in flght = to it's weight. whos got a set of scales?
has anyone ever jumped in a train wondering if the train will move while your in the air and you land somewhere else??? i have and was disapointed to land in the same spot lol to young to know about momentum, but i'm sure now thats the longest leap i've ever made lol
I’ll completely agree with your conclusion if you substitute mass for weight.
You received momentum from the train therefore giving you the impression of landing in the same spot. If you disengage yourself from the floor of the train for sufficient period of time you would notice a displacement in your location due to the train’s continued forward motion and your loss of momentum. But if you were to jump while the train is increasing or decreasing its speed then this difference would be much more noticeable. Also consider what happens when the train suddenly changes it speed which is most noticeable while standing: your body continues to move in a direction opposite that of the train’s until your momentum equals the train. If this weren’t true then nothing would happen to you in a car crash.
Hay that’s my story and I’m sticking to it.
Miles.