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imagine that i am travelling in a car at such a speed so that 5 minutes for me are equivalent to 100 years for the rest of the world. then how much fuel will my car consume??? fuel required for 5 minutes or for 100 years???.... coz for others i was travelling for 100 years but according to me i just travelled for 5 minutes,.... i am eagerly waiting for the answer... GIVE A COMPLETE EXPLANATION please..

2006-06-23 08:24:27 · 6 answers · asked by achilles_m91 2 in Science & Mathematics Physics

i know its totally impractical... but imagine

2006-06-23 09:11:48 · update #1

none of the answers is providing satisfactory explanation... PLEASE someone who knows the answer...... go for it

2006-06-25 19:00:02 · update #2

6 answers

The answer is very simple: the same amount of fuel is required no matter which reference frame you're in. Because it only takes you 5 minutes to travel from point A to point B, your fuel consumption rate will be significantly higher in your reference frame (remember consumption rate = amount of fuel burned/time) than someone measuring the rate in a stationary reference frame. The key points to remember is that total amount of matter and energy is the same no matter what reference frame you're in, but the passage of time is relative, and is dependent on your speed of motion.

So before you start your trip back to Earth, you must carry enough fuel to burn for 5 minutes, but you'll need to account for the relativistic effect, so you'll find that it is the same amount of fuel you'll need to burn for 100 years, according to someone in the stationary reference frame.

I hope this helps to clarify these concepts for you!

2006-06-26 14:40:03 · answer #1 · answered by PhysicsDude 7 · 0 1

The problem I think you are missing is what energy required to get you up to speed. It will obviously require a lot. You are confusing a few things. The fuel required for your car to operate for the 100 yrs is primarily spent against air resistance. Assuming your just motoring around. If you were constantly stopping, then accelerating up to speed, then stopping, yada yada, the energy would be similar. But, at the speed you want, you are not traveling through air, right? Because that would require a immense amount of energy. Think of it. Your aerodynamic body would have to be accelerating the air around it to relativistic speeds. Even five minutes of such is a VERY large number. So, if it is a 'space car', it just boils down to getting it up to speed. And that doesn't equate to your 'land car', in terms of going somewhere.

2006-06-23 08:40:53 · answer #2 · answered by Karman V 3 · 0 0

It all depends upon the frame of reference. When you are in the car and if u consider according to the frame of reference of urself u are at rest. Therefore according to you, you should not have travelled anything. But according to the world you have travelled for 100 years. And the world is inertial frame of reference.

Therefore u need fuel for 100 years.

I hope u understood.
I am very sure about this.

2006-06-23 08:41:24 · answer #3 · answered by Zohaib H 2 · 0 0

For you to slow down time like that would mean you'de have to travel close to the speed of light at least. You'de need enough fuel to travel close to 3.0 x 10^8 kph, and you'de be travelling that fast for only 5 minutes relative to you, so you'de only need 5 minutes worth. Theoretically speaking.

2006-06-23 10:20:25 · answer #4 · answered by trancevanbuuren 3 · 0 0

Really, this question is unanswerable, because there is no car that could travel this fast. Your car would have to go something like 1,900,000,000,000 miles per hour. The current land speed record is 763 mph. Good luck.

2006-06-23 08:36:49 · answer #5 · answered by iwastypingthat 4 · 0 0

I think Zohaib is on the right track

The amount of fule consumed will be the same. The rate of consumption will be different if measured by you than it would if measured by me.

I would think your consumption rate is much slower than you would.

2006-06-23 09:45:43 · answer #6 · answered by scott_d_webb 3 · 0 0

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