if so , u are right, T and x are not inversely proportional
in paper 6, it was T^2 and x, which are inversely proportional
best of luck, hope u do well in paper 5 ! 
Thanks man.
anw aft i had been so worried abt my performance for this practical, one good news from my phys teacher is that the examiner will look more at our overall performance (%) and THEN, follow the threshold.
so now im a little confused whether if we get overall 90%+ but practical slightly lower than the threshold, will we still get A*?
my phys teacher told me that we would still get. i do greatly hope he's correct.
By the way this session threshold would probably be low as well. definitely lower than jun09 and some other sessions.