CGL 2012 Tier 2 Preparations and Results

Staff Selection Commission (SSC) SSC - CGL
2964
@watsnew24 said:
logical to yahi hai but I am getting it diffrentshare ur approch
vector logic use kiya:

component of his speed along horizontal line = v cos 30
2965
@Brooklyn said:
ans kya hai uska/??
my answer isnt in option
2966
@watsnew24 :Wats d OA???
2967
@Brooklyn said:
vector logic use kiya:
component of his speed along horizontal line = v cos 30


so v cos 30 = ???
2968
@Brooklyn said:
@watsnew24 :Wats d OA???


kaha pe bhai?

2969
@watsnew24 : arey v= 2.5

v*cos 30 = 2.5 * rt(3)/2 = 2.16
2970
@watsnew24 : Speed walle q ka ans kya hai official ans???
2971
@Brooklyn said:
vector logic use kiya:
component of his speed along horizontal line = v cos 30
angle jo de rakha h wo wall ke saath h ladder ka....floor ke saath nahi....upar wala angle 30 hai.....hume horizontal wala nikaalna h.....sin 30=x\2.....
2972
i took 3 4 5 right angle tria
nd assumed 5m as hypotenuse i.e lader so 2.5..
2973
@Brooklyn said:
@watsnew24 : arey v= 2.5
v*cos 30 = 2.5 * rt(3)/2 = 2.16
bhai v = 2.5 kaise aya

q me to 2 likha hai.....????
2974
@anubhav2011 : ohh made mistake den!!

@watsnew24 : v *cos 60 hoga made error
@anubhav2011 said:
angle jo de rakha h wo wall ke saath h ladder ka....floor ke saath nahi....upar wala angle 30 hai.....hume horizontal wala nikaalna h.....sin 30=x\2.....
so ans = 2.5/2=1.25 or 1
2975

wat is d correct ans

2976
@anubhav2011 said:
angle jo de rakha h wo wall ke saath h ladder ka....floor ke saath nahi....upar wala angle 30 hai.....hume horizontal wala nikaalna h.....sin 30=x\2.....
yaar by this yes we will get the answer

but how did u reach this conclusion that where is the angle

me to niche le k matha maar rha hu
2977
@watsnew24 : Sorry yar made error

correct way:

angle made by ladder with wall =30

so angle made with ground =60

thus

vector component along ground

v cos 60

v=2

so ans = 1
2978
@Brooklyn said:
@anubhav2011 : ohh made mistake den!!
@watsnew24 : v *cos 60 hoga made error
so ans = 2.5/2=1.25 or 1
yaar 2.5 kaise aya
2979
@cbiofficer said: wat is d correct ans
@watsnew24 said:
yaar by this yes we will get the answerbut how did u reach this conclusion that where is the angleme to niche le k matha maar rha hu
@Brooklyn said:
@watsnew24 : Sorry yar made error
correct way:
angle made by ladder with wall =30
so angle made with ground =60
thus
vector component along ground
v cos 60
v=2
so ans = 1
2980
@watsnew24 said:
yaar 2.5 kaise aya
@Brooklyn said:
@watsnew24 : Sorry yar made error
correct way:
angle made by ladder with wall =30
so angle made with ground =60
thus
vector component along ground
v cos 60
v=2
so ans = 1
2981
@watsnew24 : i hope everything is clear nw


@cbiofficer
2982
@sampras said:
ha bhai ho gayi ... finally went to studio and got it done through adobe photoshop... thanks for concern yaar...
arre late ho gaya (ya tumne jaldi kar di 😛 ) warna ghar baithe kaam ho jaata..khair accha hai if it is done
2983
@watsnew24 said:
yaar by this yes we will get the answerbut how did u reach this conclusion that where is the angleme to niche le k matha maar rha hu
usme likha to h yaar ladder is inclined to the wall at an angle of 30......answer would be 1