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Community shelf Community shelf -> Trigonometry basic formulae -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
4 replies   
good .....
Catalogs Discussion Forums -> Mechanics -> Find the tension in the string.... -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
13 replies   
Well in that case, the length of hypotnuse should be given.
T4 = 0
And the angle be @, and hypotnuse be x.
Then T3 = T5 = T (say) ...... as same string.
Then we get,
T1 = T.sin @ = 10g
T2 = T.cos@
 
Hence, T = 9g/x
and T2 = ((8100 - x2))g / 9
 
This will do .........
 
But now also I think that acc to the figure, 37 and 53 are the angles ........
Catalogs Discussion Forums -> Analytical Geometry -> coordinate system -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
4 replies   
I think, for minimum difference the pt P should be the point of intersection should of the line AB and y=x.
Hence P == (2.6 , 2.6)
Hence, PA - PB = (68 - 153) / 5.
 
I know, the ans is weird but this is all i could think of.
Catalogs Discussion Forums -> Mechanics -> Find the tension in the string.... -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
13 replies   
The whole system is in equilibrium.
Hence, the equations will be .....
(1) T1=mg
(2) At the lower point,
     T3.cos 37 = T1
     T3.sin 37 = T2
(3) At upper point,
     T5.cos 53 = T3.cos 37
     T5.sin 53 = T4 + T3.sin 37
 
and we know that tan 37 = 4 / 3
 
Hence,
T1 = 10g
T2 = 7.5g
T3 = 12.5g
T4 =  5.84g
T5 = 16.67g
 
Hope you get it .....
Catalogs Discussion Forums -> Physical Chemistry -> Volumetric Calculations ..... -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
1 replies   
A mixture of FeSO4 and FeC2O4 required 250 ml of 0.1 M acidified KMnO4 for oxidation. If molar ratio of FeSO4 and FeC2O4 in the mixture is 2:1, find masses of them in mixture.
Catalogs Catalogs -> Model Papers -> Raman's IIT-JEE 27 Years' Solved Papers -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
0 replies   
This book gives us systematic solutions of the JEE papers (both Screening and Mains). It even helps students to know the way of application of their knowledge in getting the solutions of the questions asked. It makes acquainted with the styles, types and extent of difficulty by going through lucid and elaborate solutions.
 
Moreover, I found that this book contains less errors in the solutions than other books available in the market.
Community shelf Community shelf -> facts u should know----mechanics -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
5 replies   
good one yaar ......
Community shelf Community shelf -> list for moments of inertia of different bodies........... -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
11 replies   
good .........
Community shelf Community shelf -> FORMULAE...............now in physics........plzz see it .....for ur benefit.......!!!!!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
14 replies   
good work man .......... great for a quick revision ............
Community shelf Community shelf -> formulae for infinite series......plzzz see this.....will surely help u.......!!!!!!!!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
18 replies   
good work yaar ........
Community shelf Community shelf -> COLLECTION OF FORMULAE..........for those who did not see this..........!!!!!!!!!!!!!!! -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
8 replies   
kya baat hai ..... bete .....
tu to sikh gaya ..... ;)
Community shelf Community shelf -> Pseudo Force a discussion -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
9 replies   
good .......
Catalogs Discussion Forums -> Integral Calculus -> FORMULAE on JEE probs..some more added -> Go to message
This Post 0 points    (Olaaa!! Perrrfect answer.   in 0 votes )   [?]
40 replies   
Great work yaar ........
Tu to mera calculus sudhravaega ........
Catalogs Discussion Forums -> Analytical Geometry -> st lines -> Go to message
This Post 5 points    (Olaaa!! Perrrfect answer.   in 1 votes )   [?]
3 replies   
The vertices of the triangle are A(-8,5), B(-15,-19) & C(1,-7).
Hence AB = 25, BC = 20 & CA = 15.
 
Now theres a prop of angle bisector that it divides the opposites side in the ratio of its arms. Hence AD divides BC in the ratio 5:3.
 
Hence, D(-5,-23/2).
Now, we can write the equation of AD in two point form.
It is (-13/3)x + 2y - (5/3) = 0
 
Hence a = (-13/3) and c = (-5/3)
 
Catalogs Discussion Forums -> Lounge -> Future iitians -> Go to message
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16 replies   
I think its Self-confidence , Desire to get into da IITs, Smartwork (Smart studies) and Creativity .......
 
 
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