Since gravity can duplicate the effects of acceleration, it can also balance the effects of acceleration. Cite how and when an astronaut can experience no net force (as measured by a scale) because of the cancelling effects of gravity and acceleration.
2007-06-07 11:57:57 · 4 answers · asked by Anniepannie06 2 in Science & Mathematics ➔ Physics
When an astronaut is orbiting the Earth, they are accelerating upward and outward from the Earth, while simultaneously being pulled down. That's why they float -- not because of lack of gravity.
2007-06-07 12:00:42 · answer #1 · answered by Mickey Mouse Spears 7 · 0⤊ 0⤋
I'm not a Physics expert, but I did take Physics in high school. An astronaut riding in the "Vomit Comet" experiences the effects of which you are questioning. He is traveling at the same speed as the plane, relative to the ground, and falling at the same rate as the plane he is in. Therefore, there is no net force on him, relative to the plane he is in and he appears to be weightless. I hope this answers your question. After all, all things are relative. Relatively speaking, that is.
2007-06-07 19:03:56 · answer #2 · answered by Kevin U 4 · 0⤊ 0⤋
yes I would say that it is very likely that physics experts could help you with a problem concerning the theory of relativity. Especially if that was their area of expertise. However I would say that the likelyhood of you finding ANY type of expert in the yahoo answers community is highly doubtful and the outlook is not so good.
You may however find a cheetos expert
2007-06-07 19:01:26 · answer #3 · answered by nadesico612 2 · 0⤊ 2⤋
Hmm... the pendulum bob exp. it measures accel relative to gravity.
2007-06-07 19:01:01 · answer #4 · answered by Kieran OD 2 · 0⤊ 0⤋