Length Contraction Question 0.99999c answers (2 Viewers)

[Aerath]

If I was marking it, I wouldn't. Simply due to the number of sig figs in the velocity.

But, I'm a prick when I mark stuff... And ONLY then

Hahahahahaha - but like, there are only 2 significant figures in the 'light years', and I was always taught to take the answer to the smallest number of sf given in the question.

 

[mahdi]

I didnt understand the second part of this question. It said what would be the time taken in YOUR FRAME OF REFERENCE. Time can never slow down in ones frame of reference.
So doesnt it mean it would take you 170000 light years / 0.99999c ???

If the question had said "how much time will pass in the observers frame of reference", then i would have done what everyone else did. Im pretty sure im wrong, but could someone please explain it to me.

 

[Michaelmoo]

Hahahahahaha - but like, there are only 2 significant figures in the 'light years', and I was always taught to take the answer to the smallest number of sf given in the question.

You usually get the marks when you put in the right substitution anyway...

And as far as I know, theres no significant figure rule in physics. That's only in chem.

 

[Aerath]

Wouldn't it make sense to have the SF rule in Phys, but not Chem?