Qualification > Reference Material

Add Maths June 8, 10 2010

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Dibss:

--- Quote from: ankitd_1994 on May 29, 2010, 11:40:16 am ---hey can anyone who is an ex add math student or doing add math this yr, post up a list of formuale and short notes on all chapters for add math?? ???

--- End quote ---

Hope this helps and all the best for Add Math guys :)

ankitd_1994:
hey i have a doubt on rel. velocity
q. 9 in the june 2009 paper 1 (are there variants for add maths too?)

ankitd_1994:

--- Quote from: destructor on May 30, 2010, 06:48:06 pm ---hey guys
i take add math too
u guys should focus on vectors in the cartesian form (xi+yj)
cuz i feel thats gonna show up on ppr 2 this year
someone in the previous pages was askin for a formula
the important formula for this
is position vector + time(velocity vector)= new position vector


--- End quote ---

is velocity vector the same as magnitude?

ankitd_1994:

heyy anyone there?? ??? ??? pls answer the ques., i have posted it this time:  :-\


9)  At 10 00 hours, a ship P leaves a point A with position vector (– 4i + 8j) km relative to an origin O,
   where i is a unit vector due East and j is a unit vector due North. The ship sails north-east with a speed
   of 10?2 km h–1. Find
   (i) the velocity vector of P, [2]
   (ii) the position vector of P at 12 00 hours. [2]
   At 12 00 hours, a second ship Q leaves a point B with position vector (19i + 34j) km travelling with
   velocity vector (8i + 6j) km h–1.
   (iii) Find the velocity of P relative to Q. [2]
   (iv) Hence, or otherwise, find the time at which P and Q meet and the position vector of the point
   where this happens. [3]

ankitd_1994:
sry the speed is 10*[sq.rt(2)] km h-1

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