Mathematics: Post your doubts here!

[Suchal Riaz]

who's done with mechanics? want to discuss paper 4

there are only three people active on this thread and all are doing M1 paper 4. discuss.

 

[Suchal Riaz]

I am going to sleep now. i hope we all do tomorrows paper better than our expectation.

 

[cool Asviva]

look we will put the value of v which is 30 and t which is 10 in the equation so we will get the constant
a=-0.4t
v=-0.2t^2 +k
30=-0.2(10)^2 +K
30=-20+K
k=50

thanks a lot
one more question
http://papers.xtremepapers.com/CIE/...AS Level/Mathematics (9709)/9709_w08_qp_4.pdf
http://papers.xtremepapers.com/CIE/...AS Level/Mathematics (9709)/9709_w08_ms_4.pdf
question # 7ii
here in this question why aren't they taking t=0.5 and v=5 to fing k? what's the difference between these two situations?

 

[cool Asviva]

anyone else?

 

[daredevil]

thanks a lot
one more question
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w08_qp_4.pdf
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w08_ms_4.pdf
question # 7ii
here in this question why aren't they taking t=0.5 and v=5 to fing k? what's the difference between these two situations?

just give me a while and i'll try solving it...

 

[daredevil]

thanks a lot
one more question
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w08_qp_4.pdf
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_w08_ms_4.pdf
question # 7ii
here in this question why aren't they taking t=0.5 and v=5 to fing k? what's the difference between these two situations?

okay wat are u considering k??

and if u are talking about using the equations of motion to solve this then it is not valid here bcz the acceleration is not constant. we can only use the equations of motion if the aceleration is constant.

 

[persandkesh]

Help me please no 4
http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s11_qp_41.pdf

 

[persandkesh]

Who's done mechanics paper 4? want to discuss some problems.

Can you help me please
No 4
http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s11_qp_41.pdf

 

[itallion stallion]

Any one with P3,really stuck in it!

 

[kitkat <3 :P]

http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s11_qp_41.pdf
Q4
Thought blocker

 

[Heyyy]

Yeah,p3

 

[Thought blocker]

http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Mathematics (9709)/9709_s11_qp_41.pdf
Q4
Thought blocker

Where were u stuck in this question ?

 

[kitkat <3 :P]

Where were u stuck in this question ?

2nd part

 

[Thought blocker]

2nd part

First part ho gya ?

 

[kitkat <3 :P]

First part ho gya ?

haan

 

[Thought blocker]

When X = 10 ; Input it in 9X - F = 55 ; F = 35
Now F = myu R
Hence, 35 = myu (110cos30)
myu = 0.367

 

[Thought blocker]

haan

Wo teko 2x + F = 55 wali eqn me , "+" 2X kaisey aya ?

 

[kitkat <3 :P]

When X = 10 ; Input it in 9X - F = 55 ; F = 35
Now F = myu R
Hence, 35 = myu (110cos30)
myu = 0.367

55 kidar se aaya ._.

 

[Thought blocker]

55 kidar se aaya ._.

55 = 110sin30 LOL

 

[kitkat <3 :P]

Wo teko 2x + F = 55 wali eqn me , "+" 2X kaisey aya ?

yaar wo dono forces ki same directio nai thi :/??
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