ATAR Notes: Forum

VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Physics => Topic started by: Reckoner on May 24, 2012, 09:02:13 pm

Title: Special Relativity question
Post by: Reckoner on May 24, 2012, 09:02:13 pm

If an observer on earth observes two spaceships travelling towards each other, one at 0.6c (A), the other at 0.7c (B), what speed would ship A measure B to be travelling at and vice versa?

Thanks

Title: Re: Special Relativity question
Post by: yawho on May 24, 2012, 10:00:23 pm

Quote from: lpe on May 24, 2012, 09:02:13 pm

If an observer on earth observes two spaceships travelling towards each other, one at 0.6c (A), the other at 0.7c (B), what speed would ship A measure B to be travelling at and vice versa?

Thanks

diff lorentz transf wrt t to obtain a conversion formula
answer 0.9155c

Title: Re: Special Relativity question
Post by: Reckoner on May 24, 2012, 10:20:09 pm

ok, thanks. Do I need that formula/to know how to do this for VCE physics?

Title: Re: Special Relativity question
Post by: yawho on May 24, 2012, 10:22:58 pm

have not seen such questions in past exams

Title: Re: Special Relativity question
Post by: Reckoner on May 24, 2012, 10:37:27 pm

Ok, thanks a lot!