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![[Post New]](/templates/default/images/icon_minipost_new.gif) 28 Mar 2007 11:19:23 IST
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LAWS OF MOTION 1) %age change in wt. in a lift = + - a/g * 100 2)Tension in pulley T = 2M1M2g / M1 + M2 3)Pulley system over an inclined plane T = M 1M 2 g ( 1 + sin  ) / M 1 + M 2 |
I always like to walk in rain as no one can see me crying there :(
frnds are like diamonds , if u hit them , they don't break but they slip frm ur hands
-----It is better to be hated for what you are than to be loved for what you are not.----
*****wen love and skill work together--expect a masterpiece*****
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28 Mar 2007 11:21:30 IST
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Pulley system in a lift
T = M1M2 ( 1 + sin $ ) ( g +- a)
Tension in any string = mass draged * F/M
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I always like to walk in rain as no one can see me crying there :(
frnds are like diamonds , if u hit them , they don't break but they slip frm ur hands
-----It is better to be hated for what you are than to be loved for what you are not.----
*****wen love and skill work together--expect a masterpiece*****
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this reply: 80 points
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28 Mar 2007 11:24:33 IST
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%age change in K.E. (in momentum) Kf - KO / KO * 100 =( Pf )2 - (Po)2 / ( Po )2 * 100
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I always like to walk in rain as no one can see me crying there :(
frnds are like diamonds , if u hit them , they don't break but they slip frm ur hands
-----It is better to be hated for what you are than to be loved for what you are not.----
*****wen love and skill work together--expect a masterpiece*****
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28 Mar 2007 13:06:34 IST
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gr8 yaar................................
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28 Mar 2007 13:25:28 IST
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work done wen.............
1)rod placed horizontally is tilted...............
w = mg(L/2)(sin$)
2)rod placed vertically is tilted
w = mg(L/2)(1 - cos $)
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I always like to walk in rain as no one can see me crying there :(
frnds are like diamonds , if u hit them , they don't break but they slip frm ur hands
-----It is better to be hated for what you are than to be loved for what you are not.----
*****wen love and skill work together--expect a masterpiece*****
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28 Mar 2007 13:28:42 IST
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A ball falls frm height "h" and hits the earth inelastically then..............
height of ball after nth collision = e^2n . h
total dist. travelled by ball bfore cmng to rest = h ( 1 + e^2 / 1 - e^@2)
total time taken by ball to com to rest = ( 1 + e / 1 - e). (2H/g)^1/2
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I always like to walk in rain as no one can see me crying there :(
frnds are like diamonds , if u hit them , they don't break but they slip frm ur hands
-----It is better to be hated for what you are than to be loved for what you are not.----
*****wen love and skill work together--expect a masterpiece*****
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The condition that a projectile projected at an angle X with an inclined plane inclined at an angle $ retraces its path is: (N+1)*Tan$*TanX = 1............ where N is the no. of collisions it makes with the plane...
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28 Mar 2007 13:58:18 IST
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1)Suppose two particles have position vectors r2 and r1 and their velocities are v2 and v1 (note that r2, r1 , v2, v1 are vectors)..collide is: r2-r1/ [r2-r1] = v2-v1/[v2-v1] where [x] denotes magnitude of x..... 2) in the general river- swimmer case.... let Vmg => vel of man w.r.t ground Vmw=> vel of man w.r.t water Vwg => vel of water w.r.t ground.. then....the conditions for: (i) zero drift is: Vwg is perpendicular to Vmg (ii) minimum time is: Vmw is perpendicular to Vmg (iii) non-zero min drift is: Vmw is perpendicular to Vmg the case (iii) arises when vel of man is less than vel of water flw..
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28 Mar 2007 22:17:08 IST
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NEWTON'S LAWS OF MOTION MOTION OF CONNECTED BODIES Consider three masses M1,M2,M3 conncted to each other wih strings.A Tension T1is applied on M1. The system lies on a frictionless surface.the acceleration produced by the system is given by, a= T1 ---------- M1+M2+M3 The tensions in da strings between M1 and M2 is T2=(M2+M3)a similarly tension in which M3 is pulled is given by T3=M3a= M3T1 ---------- M1+M2+M3 here we kno T1...... thank u! i will post more of dese.... dont forget to rate me!!!!
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28 Mar 2007 22:37:32 IST
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very well; done ! please post something in maths and chemistry as well !
thank u and himanshu and all others very good job !
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28 Mar 2007 23:33:28 IST
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considering gas laws any problems refer this link
http://www.chemistry.ohio-state.edu/betha/nealGasLaw/index.html
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28 Mar 2007 23:36:27 IST
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