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Um, on the explanation on how much it would cost to travel one light year. Doesn\'t one of Newton laws says that an object will keep moving unless otherwise acted on by another force. So if a force accelerates a spaceship to the speed of light, wouldn\'t it keep moving in that direction at that speed forever. You wouldn\'t need to spend more fuel other than the initial force to get up to speed. The car example is different as you have to constantly keep adding force in order to keep the car at the same speed because of FRICTION.
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Um, on the explanation on how much it would cost to travel one light year. Doesn\\\'t one of Newton laws says that an object will keep moving unless otherwise acted on by another force. So if a force accelerates a spaceship to the speed of light, wouldn\\\'t it keep moving in that direction at that speed forever. You wouldn\\\'t need to spend more fuel other than the initial force to get up to speed. The car example is different as you have to constantly keep adding force in order to keep the car at the same speed because of FRICTION. Which you wouldn\\\'t have in space.
Changed line(s) 1 from:
n
Um, on the explanation on how much it would cost to travel one light year. Doesn\'t one of Newton laws says that an object will keep moving unless otherwise acted on a force. So if a force accelerates a spaceship to the speed of light, wouldn\'t it keep moving in that direction at that speed forever. You wouldn\'t need to spend more fuel other than the initial force to get up to speed. The car example is different as you have to constantly keep adding force in order to keep the car at the same speed because of FRICTION.
to:
Um, on the explanation on how much it would cost to travel one light year. Doesn\\\'t one of Newton laws says that an object will keep moving unless otherwise acted on by another force. So if a force accelerates a spaceship to the speed of light, wouldn\\\'t it keep moving in that direction at that speed forever. You wouldn\\\'t need to spend more fuel other than the initial force to get up to speed. The car example is different as you have to constantly keep adding force in order to keep the car at the same speed because of FRICTION.
