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Catalogs Discussion Forums -> General Physics -> give examples where a)the vel.of a particle is zero but its acceleration is not zero b)the vel. is -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
a)-at the highest point when u throw a ball up in the air...b) similiarly wen u throw a ball up in the air while going up..c) in a uniform circular motion vel is always perpendicular to the accln....
Catalogs Discussion Forums -> Mechanics -> projectile motion: -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
well sory fr mesng it up(i hav postd the ans two times..)..this is the frst time i had upolode the image of my answer..nw i kno hw to do it nd this will nt hapen again.....
Catalogs Discussion Forums -> Mechanics -> projectile motion: -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Catalogs Discussion Forums -> Mechanics -> projectile motion: -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
the answwer to yr secnd ques...well its a big image ..so you beter copy it to yr pc nd then view it....
Catalogs Discussion Forums -> Mechanics -> projectile motion: -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

Catalogs Discussion Forums -> Mechanics -> projectile motion: -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
abt the secnd one there is a simple method....use the concept of relative moton b/w projectiles...write the velocity in vectr natation of the two projectiles nd then find the relative velocity of one w.r.t other..the relativ velocity of the projectile will b along a straight line...usong simple trigo u can get the minm distance...i will soon post the complete solution....
Catalogs Discussion Forums -> Mechanics -> projectile motion: -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
the first one is quite simple..an application of relative motion....velocity of wedge is 10root3 i(i nd j here mean unit vectr)...nd speed of particle is 5root3 i + 15 j ...so nw velocity of particle w.r.t wedge v(pw)= -5root3 i + 15 j ....so this is same as throwing a projectile frm a base of inclind plane wid horizontal velocity 5root3 nd vertical velocity 15..u can get the time.....if u hav prob getnh it jst tell..i will post the complete ques...nd by the way the answer cums out to be 2sec.....
Catalogs Discussion Forums -> Mechanics -> MECHANICS DOUBT -> Go to message
This Post 5 points    (1 Olaaa!! Perrrfect answer.   in 1 votes )   [?]

 
Catalogs Discussion Forums -> Mechanics -> hi..why there is intense gravity inside a black hole? -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
yes..as far as i kno..(which as a mater of fact in nt much)...the blak holes hav almost infinite density bcoz larg mas r concentrated in smal region..(there center which is called singularity)..thus due to their high density they exert very strng gravitatuion(we kno tht m is dirctly proportional 2 density)....if u want mor infrmation just google it ..u wil get tones of information abt it on net....
Catalogs Discussion Forums -> Mechanics -> say if 2 blocs on smooth and light pulley of masses 10 kg and 20 kg are connected with a string whic -> Go to message
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Catalogs Discussion Forums -> Mechanics -> ans plzz..... -> Go to message
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Catalogs Discussion Forums -> Modern Physics -> what is work function -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
it is the minm amt of energy requred to eject electrons frm a heated metal surface......
Catalogs Discussion Forums -> Mechanics -> reln b/w the accns..... -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
plzzzzz sum1 post the solution ....i don't beleive tht none of u kno the ans....
Catalogs Discussion Forums -> Mechanics -> gud ques.... -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

 
Catalogs Discussion Forums -> Mechanics -> reln b/w the accns..... -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
plzzz do reply yaar......
Catalogs Discussion Forums -> Mechanics -> reln b/w the accns..... -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
hey..but the answer is a1 = a2 + a3....plzzzz sum1 solv yaar...nd tell me hw 2 apply constraint in these situations...plzzz do reply immediately.......
Catalogs Discussion Forums -> Mechanics -> reln b/w the velocities..... -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

 
Catalogs Discussion Forums -> Mechanics -> reln b/w the accns..... -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

 
Catalogs Discussion Forums -> Counselling Zone -> KVPY......... -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
cum on yaar....i can't beleive tht no one here has given the prestigious kvpy....plzzz do reply.....experts ...help needed.....plzz do reply...
Catalogs Discussion Forums -> About IITs and JEE -> KVPY>>>>>>> -> Go to message
This Post 0 points    (0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]

.i wantd some information abt kishor vagyanik prothasan yojna.(kvpy)...plzzz any seniors who hav given the xamination.. can u plzz tell me wat is the format of the xam.,.. i mean do the xam hav two paper(like JEE has paper 1 nd papr 2) or a single papr nd wat is the duration of xamination.......can u plzz tell me wat ws the timng of the xamination last yr..(if u rembr)....also plzz coment on the level of xamination's question...nd the topics frm which the questions cum...PLZZZZZZZ do reply immediately.....i shall be very thnkful fr the infrmation...
 
 
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