Slimzjoe:
Cc: Teempakguy
Johnydon22
Robinhez

Come solve this maths

Do you understand conservation of energy principle?

Adultnextdoor come and present your answer for question 3. So that I can determine whether you are right.

Dollyak:

Do you understand conservation of energy principle?

Sure... Why?

Slimzjoe:


Sure... Why?

Well, that was my reply to adiwana. He doesn't seem to understand my solution.

Adiwana:

nawao

These are all very difficult questions. I doubt if I can solve them.

The answer is 0 raise to power 2

This is just a further mathematics. Don't see anything hard in these to be honest. This ain't no advanced calculus that's for sure.

mickyeddi:
They are ranked by a site called Brilliant.org, which asks users progressively harder math and science problems.

Think you might be as smart as one of these tweens or teens?

Prove it by solving some of the math problems they've solved.






1.


2.


3.


4.

Suicide mission.... weting we do u nah I develop an headache after seen the bullsh!t. But I fit try shaa

Dollyak:
This is just a further mathematics. Don't see anything hard in these to be honest. This ain't no advanced calculus that's for sure.

oh really?
I find them rather difficult. Except number 4.

Dollyak:
Number 4 is quite easy too as well.
If you think about this. The total amount spent in the air by the skier is the same as the time taken to slope down(starting from the horizontal position) the whole distance of 50meters.
thus distance gives =1/2 at t^2
Therefore 50=1/2 × gt^2 = 1/2 (9.8 )t^2 =50 solve for t
T= 3.2 seconds

Very easy because time only depends on gravity in this case.

this is incorrect. We are asked to find the amount of time spent in the air After the height of 50m has being transversed. I think the best approach would be to find the final velocity at the foot of the jump and use it to calculate the time used in flight.

Teempakguy:
this is incorrect. We are asked to find the amount of time spent in the air After the height of 50m has being transversed. I think the best approach would be to find the final velocity at the foot of the jump and use it to calculate the time used in flight.

You are wrong. Anyways, check my subsequent answers

Dollyak:

check my subsequent answers

ok..'ve gotten it..just studied it..kudos

Teempakguy:
oh really?
I find them rather difficult. Except number 4.

They are more like a brain teaser rather than a hard core math.

This is the solution for question 3. A quick explanation.
Equality occurs by having equilateral triangle on the sphere and then 5 points at each vertex.

Dollyak:

Factoring the coeeficient of friction mean the net force on the skier on the ski jump parallel to the ski jump surface is a combination of the gravitation force and the frictional force,
For simplicity
F(net)= mg (sinθ -μcosθ)

The net work done on the skier as he travels down the jump is W= FL where L is the length of the jump, L=50/sinθ


By the work-energy theorem the skier launches horizontally from the bottom of the jump with a speed
v(=(2gh(1-μcotθ))^2
After the skier launches (and treating the launch point as x,y=0), the horizontal and vertical position of the skier are
and at the moment of impact, (x,y)=(0,0)
x=vt, y=-1/2 (gt)
The landing spot is on the line , so we have a system of equations we can solve for t=3.794 seconds.
v=29.919m/s check attached pictures to see how I solved for v


More detailed calculation using conservation energy. ..

Using the conservation of energy principle, the work done by friction must be equal to the change in the mechanical energy of the system (h = 50m, alpha = 30°),
(1/2mv^2)-mgh=-μmgcosθ(h/sin30)
This implies
v=sqrt (2gh (1-μcot30))
During the fall, using parallel (x axis pointing 'downwards') and perpendicular (y axis pointing 'upwards') axes in respect to the hill, we can write down the variation of y with time as
y=y[size=4pt]0[/size]+vsin30t-(g cos at^2)/2)
Setting y=0 and solving for t(h'=5m)
t=vtana/g (1+sqrt (1+(2gh'/v^2 tana^2)))=3.795

of course . . . I have never even seen any of these equations before.

Dollyak:

You are wrong. Anyways, check my subsequent answers

how am I wrong
I checked your subsequent answers and you did exactly what I said.

ElDeeVee:

Lol wait I wan make money first

forget money jhur.. come attend to your baby here..

Dollyak:
This is the solution for question 3. A quick explanation.
Equality occurs by having equilateral triangle on the sphere and then 5 points at each vertex.

You're good!

Please recommend the math textbooks I can read.
I'm currently an O'level student.

bqlekan:
forget money jhur.. come attend to your baby here..

lol ok I'm on my way

Lordave:
Jesus is the Answer.

Not on these questions.

Teempakguy:

You're good!

Please recommend the math textbooks I can read.
I'm currently an O'level student.

[1] http://www.amazon.co.uk/Further-Pure-Mathematics-L-Bostock/dp/0859501035

[2] http://www.amazon.co.uk/Further-Pure-Mathematics-Brian-Gaulter/dp/0199147353

[3] http://www.amazon.co.uk/Mathematical-Methods-Physics-Engineering-Comprehensive/dp/0521679710

[4] http://www.amazon.co.uk/AS-Level-Maths-Core-Revision-Guide/dp/1841467634

[5] http://www.amazon.co.uk/Mathematical-Puzzles-Diversions-Penguin-Science/dp/0140136355/

You can download them for free online. The first one is really good and comprehensive.

https://www.khanacademy.org

Dollyak:


[1] http://www.amazon.co.uk/Further-Pure-Mathematics-L-Bostock/dp/0859501035

[2] http://www.amazon.co.uk/Further-Pure-Mathematics-Brian-Gaulter/dp/0199147353

[3] http://www.amazon.co.uk/Mathematical-Methods-Physics-Engineering-Comprehensive/dp/0521679710

[4] http://www.amazon.co.uk/AS-Level-Maths-Core-Revision-Guide/dp/1841467634

[5] http://www.amazon.co.uk/Mathematical-Puzzles-Diversions-Penguin-Science/dp/0140136355/

You can download them for free online. The first one is really good and comprehensive.

thank you very much.

Teempakguy:
thank you very much.

check https://www.khanacademy.org you can learn from there too.

Dollyak:

check https://www.khanacademy.org you can learn from there too.

I have a very slow internet. It cannot even play videos online.
I loved Khan academy though.

writetopoker:




may your soul rest in pieces, bloody idiat!

if i sound u

ElDeeVee:

lol ok I'm on my way

you don solve the questions?

This is why Hausa's degree that western education is forbidden, because they dont want their children to change from animal to reason like human

mickyeddi:
They are ranked by a site called Brilliant.org, which asks users progressively harder math and science problems.

Think you might be as smart as one of these tweens or teens?

Prove it by solving some of the math problems they've solved.






1.


2.


3.


4.

Pls who created the problem?

After 6^2/16÷2.5+60-25/4 hours of trying to solve the questions, I've finally got the answers. See below:

1. Answer = 3
2. Answer = 0
3. Answer = 1.6
4. Answer = 9

Thanks.

Dollyak:
This is the solution for question 3. A quick explanation.
Equality occurs by having equilateral triangle on the sphere and then 5 points at each vertex.

I termed the M.Problems as hard nuts but on a second look I realised they aint that difficult & I could attempt jus Q4 & mayB Q2. But seeing the solutions U proffered on each I was like wow thought U were just vastly political inclined, didn't know you also a math guru. Thumbs up

writetopoker: as I see dis maths my mind come fly, but I catch am bck, op u wan make I craze abi? as I see dis maths my mind come fly, but I catch am bck, op u wan make I craze abi?

Lol... thank God say you catch am before person see am, think say na meat

Maths not my tin aaaaaallll. Even if someone was answering these questions beside me in an exam hall, I no go sabi to copy am. Hate writing equations!