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nice joke
we all loved it
10 bucks spent fr goiit r worth it
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given :
v= (4+4s)^1/2
v can b written as ds/dt
now this becomes a differential eqn.
ds/dt=(4+4s)^1/2
let 4+4s=m
ds=dm/4
so:
dm/dt=m^1/2
dm/m^1/2=4dt
on integrating we get:
2m^1/2=4t
i.e. 2(4+4s)^1/2+c=4t where c is some constant
now to get the value of c put t=0 and s=0 in the given eqn
we get c=-4
so
4t= 2((4+4s)^1/2)-4
at
t=2
we put the value of t in the equation and get
s=8
plz rate if helpful
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velocity is a vector quantity which tells us the rate of change of displacment with respect to time
it is represented by v= dx/dt
suppose we hav the displacement of a body given a s the function
of time eg:
x=3t + 2
then the velocity of this body is:
v=dx/dt=3 m/s
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cooooooooooooooooooooooooooooooool
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this one was really cool:
The Surest Sign That Intelligent Life Exists Elsewhere In The Universe Is The Fact That It Has Never Tried To Contact Us.
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c wen a body is on a straight bridge then only one force actsdown wards i.e. mg
on a convex bridge the centrifugal force acts away from the centre so N= mg-mv^2/r
on a concave bridge the direction of centrifugal force acts away from the centre and so the force mg and mv^2/r add up
so N=mg+mv^2/r
so the normal reacn is maximum on a concave bridge
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arey dun b sad yaar .........jab bhi u feel ki u dun hav a sis jus read out d indian pledge.........m sure u will feel a bit better(i hope u know the pledge .......)
vaise HAPPY RAKHI bro i wud b glad to b ur sis
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hey really nice article buddy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
i jus wish that more like minded ppl come up and take the initiative
coz v r the future n v hav to bring the awakening n question our selves that
INDIA MADE A TRYST WITH DESTINY ON 15 AUG 1947 IN THE MIDNIGHT BUT HAS THE DAWN TO THAT NIGHT COME?????????
and congrats for writing such a lovely article
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initial vel =30
final vel=0
s=100
v^2=u^2+2as
0=900+2*a*100
u get
a=-4.5 m/s^2
f=ma
so f=5000*-4.5
f=22500N in the backward direction
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in the first part block b will hav no role except acting as a rough surface for A and providing friction
so in this case the eqn will be:
fr =.25* N
N= 4
F=fr
F=1 N
fr will again be opposite to the force F
plz rate if ur doubt is cleared......................
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for the 2nd part:
since a is placed on b so the friction between the table and the block b will be:
fr1=.25*(4+8) since the total normal reacn will be due to both the blocks
the friction betwen the block a and block b will be:
fr2=.25*(8)
also the eqn will be
F=fr1+fr2
F= 3+2=5
friction will act opposite to the tendency of realtive motion so both the frictions will act in the same direction opposite to the tendency of motion which will be in the direction of F
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thanx for the comments and rates................................................
plz more ppl comment ...........................yaar ive put this especially for u guys
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areyyyyyyyyyyyyy aap log himanshu ko niiiiiiiii jaante ho?????????????????????????????????????
arey vo saare goiitians kaa FRND hai yaar.
he is very helping n intelligent also
and yes he counsels you really well
tabhi to uska altitues itna high hai
agar aapko aur jaan na hai unko to plz go n hav a talk wid him aap samajh jaaoge
he is really an angel
(m not saying all this coz he is my frnd n jus lik my elder bro but bcoz he has helped me many tymes)
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plllllllllzzzzzzzzzzzzz guys comment...................................plz
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