iitcomin

but these qns were for IITIMCOMIN who is studying +1 at presnt

desi gheeeeeee

i said about a couple of problems dear...........like Q46,48........If like them u may solve them........[1][1]

ans for 42nd qn

for the second question
workdone=∫F.ds

=∫xy(i).(dx i+dy j)

=∫xydy

=∫2y²dy

=2/3

doesnt match ne option so pls chek it for me.

42 a......... 43 b................. 44 ka zero aa ra hai

shankara ur rong about the second 1.........the force is only in x direction!!!!!!!!!!!!!!

F=xy(i cap)..................

w =∫ xy(icap)(dx(icap)+dy(j cap))

(reread dot product i.j = 0 and i.i = 1!!!!!!!!!!!!!!!!!!!!!!!!!!!!)

y = x/2.................

w=∫x^2/2............

w=x^3/6.......

from x=0 to x=2...................

w = 8/6 = 4/3!!!!!!!!!!!!!!!!!!!!!!!

thanx for postin yaar chinmay!!!!!!!!!! time material??????????

Chinmay, what exam is this da? Last Sunday's mock test?

sry machan i know dit product.i have almost slept while doing this pbm.

these qstns are not for jee2009 aspirants .don't waste ur time here.

is 42 )a or what

r u posting this as doubts or for others to solve????

in Q46 is teh wedge fixed or not?[7]

i think fixed because it falls 2m away from the wedge it couldnt be when itz moving so fixed i think

of course not it is not that dumb a ques..
ans would be 2.8 i think.. done long time back maybe fading memories......

try 47 the ans i'll (or tyson will) tell later

ya its ok.......i just thought that it may be in relative terms.....

arre jab likha hai neglect friction so youll neglect the question ka woh part only... [11]

dont get so angry dear......it was a doubt(silly one) which is now cleared............[6]