Originally posted by talzamir
Sunlight reaches earth in 8 and Mars in about 13 minutes, so we're talking relativistic here - and that's assuming a flying start. Starting and ending at zero velocity would require speed in excess of light speed. Sure, time delation could mean that the rocket crew (in addition to becoming flat tomato sauce on the walls) would think they are on time, but th ...[text shortened]... d still be late on arrival, Mars time, and that's the clock they get paid on so they'd be fired?
That's why I specified ship time. 160 million Km takes about 9 minutes at c.
So you can't do mars in 5 minutes Earth time or Mars time. I was just setting up the problem to solve given an unlimited G force acceleration, like I said, 1 G gets you close to the speed of light in one year or so, 32 million G gets you to c in about 1 second.
So using figures like that, how close to you get to c, accelerating half way then decelerating the rest of the way, how many G's of accel for how many seconds does it take to give a ship time of 5 minutes when we know c takes about 10 so you have to average a velocity that gives an average relativistic time dilation about 2 to 1 or so. But what are the actual numbers?