All Mechanics DOUBTS HERE!!!

[falafail]

I did da same, wat u did wrong waz 2 tke g as 10 & not 9.8

erm no actually, i did P > F instead of Pcosx > F 

anyway, here's the solving.

[AL*Eagle]

erm no actually, i did P > F instead of Pcosx > F 

anyway, here's the solving.

Thank you very much.. appreciated

[falafail]

Thank you very much.. appreciated

you're welcome

[hesho21]

guys 6(iv) in June 09 on the paper attached here , shouldnt it be 0.72m? cuz in the mark scheme its slightly larger than that ? Plz explain , thank u

[astarmathsandphysics]

I took g as 9.8

[hesho21]

ohhh thanx man , ure great 

[solo_G]

can someone explain Q 7 cz  i have trbles wed vector quantities....i mean in this question what shud we take as negative the U or da acceleration? please answer ASAP

[falafail]

can someone explain Q 7 cz  i have trbles wed vector quantities....i mean in this question what shud we take as negative the U or da acceleration? please answer ASAP

i used u as negative for Q... my friend said you could use the acceleration as negative too but idk. does it matter? supposedly you get the answer either way 

[falafail]

guys 6(iv) in June 09 on the paper attached here , shouldnt it be 0.72m? cuz in the mark scheme its slightly larger than that ? Plz explain , thank u

no, the markscheme's right  
after A hits the floor, B keeps moving upwards with a= -10 and u=1.2
to calculate the maximum height reached, you use v=0
so you get s=0.072 AFTER A HITS THE FLOOR
that means that B is already 0.36 + 0.36 m above the ground.
so 0.36 + 0.36 + 0.072 = 0.792 m.


woops, i didn't notice astar's post. oh well, at least i got practice i guess

[Fenomenoe9]

Guys i realllyyyy suck at vectors i just dong get them i tried everything .. i dont understand most of the questions in the pastpapers like what they are asking for. WHAT SHOULD I DO?? anyone know a way for like how to draw them or something so that i can atleast get what is happening or what they are asking in the question.??

Thanks

[wakemeup]

Post a specific question you have difficulty in.

Here is a video on the very basics of vectors:
[yt=425,350]pimr9I92GZY[/yt]

[Sweet_03]

hello

M1 , jan2006
can someone please explain how to do :
all of Question 4
and Question 6 part (d) only
 

[halosh92]

jan 2006 -edexcel
Q7c- SMALL DOUBT
could someone just explain why is the direction reversed??
THX

[halosh92]

guys plzz urgent
! anyone has the ms for jan 2010 m1 edexcel
VERY URGENT THXXXX

[vanibharutham]

http://www.scribd.com/doc/29694750/Edexcel-GCE-January-2010-Mechanics-M1-Marking-Scheme