2007-06-10 22:13:57 · 8 answers · asked by Tim 2 in Science & Mathematics ➔ Astronomy & Space
He would be weightless but would he feel like he was always being pushed backwards?
2007-06-10 22:25:02 · update #1
Would you be drawn toward the opposite direction of the direction the craft is moving in?
2007-06-11 02:14:08 · update #2
In space with no other gravity around, the astronaut would feel one g.
2007-06-11 00:53:55 · answer #1 · answered by Gene 7 · 1⤊ 0⤋
He would feel like he was being pulled backwards. But if the spacecraft is cleverly designed it would feel like he was being pulled downwards. Just as if he were standing (or sitting) on the ground here on earth. So he would have a very normal and comfortable environment. Until the acceleration reaches the spacecrafts march speed that is. After that the acceleration would stop and the spacecraft would keep on travelling to its destination. As the velocity reaches realtivistic speeds, 50 % of the speed of light for instance, the amount of fuel needed to keep up the acceleration would increase as the spacecrafts mass increases. To reach lightspeed you would need infinite energy as the mass of the spacecraft would also be infinite. So it isn´t possible. At 1 g the spacecraft would reach 50% of the speed of light after about a year. Then the astronaut would have to cope with zero g for a while until the spacecraft gets so close to its destination when it is time to begin the acceleration (this time negative) once more. As the spacecraft would be rotated 180 degrees he would have is 1 g back for one more year and feel just like he did when he began his journey.
2007-06-11 01:23:10 · answer #2 · answered by DrAnders_pHd 6 · 0⤊ 1⤋
if you mean the astronaut feels one g then it feels like normal, because the weight you normally feel is one g.
But i think the way you mean it the astronaut would feel 2 g's, one from gravity and once from acceleration, and so would feel twice a heavy as usual. Twice the force downwards.
They lie on their backs facing upwards, so the blood doesn't move from their heads. If the g forces get too big they can pass out, and have trouble breathing and stuff, but that wouldn't happen at only 2 g.
I guess it would be kind of like being on a roller coaster.
2007-06-10 22:21:37 · answer #3 · answered by Anonymous · 1⤊ 1⤋
No.
Once the acceleration was established at a given rate, and that rate was 1 G, it would appear to be the same force as Gravity exhibits upon us every day.
2007-06-11 01:25:13 · answer #4 · answered by zahbudar 6 · 0⤊ 0⤋
It'd feel just like here. As long as he's not near a star or planet. He'd feel normal.
If the spacecraft suddenly started doing 1 g and you weren't near a rear surface, that could be bad.
2007-06-11 19:29:13 · answer #5 · answered by anonymous 4 · 0⤊ 0⤋
Just like you would feel in a fall from the top of the Empire State Building.
2007-06-11 13:11:52 · answer #6 · answered by johnandeileen2000 7 · 0⤊ 1⤋
The same way it feels to live on the Earth!
2007-06-11 01:59:47 · answer #7 · answered by Anonymous · 0⤊ 0⤋
He would think he was sitting still on earth.
2007-06-11 01:02:44 · answer #8 · answered by Billy Butthead 7 · 1⤊ 0⤋