IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Math => Topic started by: Ro1024 on May 19, 2010, 08:54:54 pm

Title: MECHANICS EDEXCEL (M1)
Post by: Ro1024 on May 19, 2010, 08:54:54 pm

Whattt can i do about vectorsss?????  ??? ??? ??? ??? ??? ??? ???

Title: Re: MECHANICS EDEXCEL (M1)
Post by: master786 on May 19, 2010, 08:55:58 pm

u can understand them by studying them nd doin papers

Title: Re: MECHANICS EDEXCEL (M1)
Post by: Ro1024 on May 19, 2010, 09:43:38 pm

ive tried... didnt work!m i hate vectoorss!! URRRGH okay.. i need a quick revision of vectors.. anyone?

Title: Re: MECHANICS EDEXCEL (M1)
Post by: T.Q on May 19, 2010, 10:40:13 pm

check this M1 Vectors Note (http://love2learnmaths.com/Documents/Mechanics%20notes%20-%20Vectors%20-%20Introduction.pdf)

Title: Re: MECHANICS EDEXCEL (M1)
Post by: munzif on May 23, 2010, 11:18:05 am

i need the jan 2010 m1`mark scheme urgently :O where can i possibly find it?

Title: Re: MECHANICS EDEXCEL (M1)
Post by: astarmathsandphysics on May 23, 2010, 11:33:15 am

dexcel jan10 ms

Title: Re: MECHANICS EDEXCEL (M1)
Post by: Book lover22 on May 23, 2010, 12:53:23 pm

i need june 09 markin scheme... i looked evrywhere! :(

ASAP plzzz. thnkuss! :D

Title: Re: MECHANICS EDEXCEL (M1)
Post by: winnie101 on May 23, 2010, 05:38:20 pm

how do i do the following
a particle P moves with constant acc. 2i-3j. at time t sec. its velocity is vms-1. when t=0, v=2i+7j
find the value of t when P is moving parallel to the vector i.


another ques:  when they say something is parallel to j, then do we say, that i=0, but in certain ques they say i=i hope u understand wat im asking
Thanks to anyone who can help

booklover: u can find the ms on ask.com and type in where can i find june 2009 mark scheme, i think the M1 June 2009 link

Title: Re: MECHANICS EDEXCEL (M1)
Post by: astarmathsandphysics on May 23, 2010, 05:56:06 pm

v=u+at
v=2i+7j)+(2i-3j)t=i(2+2t)i+j(7-3t)
parallel to i means component of j=0
7-3t=0
t=7/3

Title: Re: MECHANICS EDEXCEL (M1)
Post by: astarmathsandphysics on May 23, 2010, 05:59:46 pm

when they say parallel to j means i component of velocity=0
I will do a page on relative velocites on my website
I already have a page for relative positions
http://www.astarmathsandphysics.com/a_level_maths_notes/M1/a_level_maths_notes_m1_more_on_relative_vectors_and_velocities.html

Title: Re: MECHANICS EDEXCEL (M1)
Post by: Book lover22 on May 23, 2010, 07:24:26 pm

Thanks winnie...:D

lissen i have a doubt too in vectors!

A ship S is moving with constant velocity (2i-3j) kmh and a ship R is moving with constant velocity 6i kmh.

a. Find the bearing along which S is moving?

At noon S is at the point with position vector 8i km and R is at O. At time t hours after noon, the position vectors of S and T are s km and r km respectively.

b.Find s and r, in terms of t

At time T HOURS, R is due north-east of S. Find:

c.the value of T
d. the distance between S and R at time T hours.

i did all da parts except c and d where i dont knw how to calculate north-east! :(
plz answer b4 midnyt! or else wont be able to sleep at nyt ;P

Title: Re: MECHANICS EDEXCEL (M1)
Post by: Sue T on May 23, 2010, 07:30:15 pm

i need the jan 2010 qp (some1 mentioned th ms above)
ny linx? i wanna do it 2moro mornin b4 the xam!!!

Title: Re: MECHANICS EDEXCEL (M1)
Post by: Aodian on May 23, 2010, 07:41:55 pm

here it is

Title: Re: MECHANICS EDEXCEL (M1)
Post by: mustafa09 on May 15, 2012, 08:04:57 am

can someone please help with vectors