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Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>
Competition - post a photo you've taken of nature >>

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M1 - Edexcel, 21st May - ULTIMATE THREAD

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http://www.freeexampapers.com/A%20Level/Maths/Edexcel/2007%20Jan/6677_01_que_20070112.pdf

Please explain all parts to question 4. Thanks.

Do I need to know the m1v1-m1u1+m2v2-m2u2 equation for this question, or is it just momentum before = momentum after.
Reply 681
Avatar for vinsta
vinsta
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andyroberts10
http://www.freeexampapers.com/A%20Level/Maths/Edexcel/2007%20Jan/6677_01_que_20070112.pdf

Please explain all parts to question 4. Thanks.

Do I need to know the m1v1-m1u1+m2v2-m2u2 equation for this question, or is it just momentum before = momentum after.

theyre both the same thing
andyroberts10
http://www.freeexampapers.com/A%20Level/Maths/Edexcel/2007%20Jan/6677_01_que_20070112.pdf

Please explain all parts to question 4. Thanks.

Do I need to know the m1v1-m1u1+m2v2-m2u2 equation for this question, or is it just momentum before = momentum after.


m1v1-m1u1+m2v2-m2u2

is momentum before = momentum after i think


a) use m1u1 + m2u2 = m1v1 + m2v2

its better

b) Impule = change in momentum

I = m(v - u)

c) F = ma

F = m((v-u)/t))

F = m(-u/t) as v = 0

however F is postive as the negative only shows direction
nah its new momentum - old momentum
Reply 684
Avatar for OggYx
OggYx
Good luck to everyone today! Hope the paper doesn't have any of those ridiculous questions we all know can pop up!
good luck everyone! hopefully the paper won't be too bad
Good luck everyone!! Espescially those who need to balance out their terrible stats grade :eek:
Reply 687
Avatar for JHughes90
JHughes90
Good luck everyone! :biggrin::biggrin:

i'm gonna cram in an extra 4 hours revision before the exam :smile:

i'm sure i'll be on later, seeing what answers everyone got.
Someone please confirm the exam is PM?

Mixed messages; friend says this morning, Edexcel website say PM.
It's PM.
bring It On :d

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