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timbk2
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You find the minium of the quadratic they give you in 3dirachey_poo said:stupey question.....how did people find the length of the shortest chord that passes through E in question 3dii) ???
and....does anyone remember their answers for the projectile motion question in 6b) ???
im not sure if im right, but i made the discriminant of the quadratic equal zero, so l^2-48=0 so l = 6.9serge said:You find the minium of the quadratic they give you in 3di
6b) i got something near 40 secs, not sure
From memory I got something like 0.1serge said:what did people get for the size of the radius? in the Q7 oilslick problem
cool, same hererenya said:yep, 0.1km
find PT using pythagoras theorm. ie PT^2 =450^2 + 2000^2Swalbs said:Instead of agreeing that its 0.1, do you think one of you could post HOW you got the answer?