BUNDLE OF PULLEYS,PLEASE HELP ME

VITEEE Questions › Mechanics questions › BUNDLE OF PULLEYS,PLEASE HELP ME

PLEASE FOLLOW THE LINK TO SEE THE PROBLEM.HERE IN THE LINK THE LINK GIVEN FOR THE ACTUAL IMAGE DOES NOT WORK.PLEASE GIVE ME THE SOLUTION OF THE PROBLEM AND THE NEW ACTUAL LINK OF THE IMAGE GIVEN IN THE QUESTION.PLEASE SOMEBODY HELP ME.I AM A STUDENT.PLEASE HELP ME.THANKS IN ADVANCE.HERE IS THE LINK OF THE PROBLEM http://www.targetiit.com/iit-jee-forum/posts/some-sums-are-best-left-unsloved-d-17282.html

#Physics #Mechanics

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2 Answers

23

qwerty ·2010-08-17 01:31:51

for this u will hav to know the concept of virtual work

wch says , for a string ,

\sum{\vec{T}.\vec{v}}=0

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Subhomoy Bakshi ·2010-08-17 02:53:56

rather (net work) Î£T.x = 0

which leads to Î£T.v=0

and Î£T.a=0

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Basic Integral Calculus Operators Symbols Matrix Cases

√ √ || {} [] () → ~ ^ x x x → → ln log lg lim lim cos sin tan cot arcsin arccos arctan

∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

∑ ∑ ∑ ∑ ∑ ∮ ∮ ∮ ∮ ∮ ∏ ∏ ∏ ∏ ∏ ∐ ∐ ∐ ∐ ∐

+ - × ÷ ± ∓ = ∪ ∩ ≠ ∼ ≈ ∅ ∀ ∃ ∈ ∋ ∝ ≤ ≥ ≃ ≅ ≡ < > ≪ ≫ ⊂ ∉ ⊃ ⊆ ⊇ ⇒ ⇐ ⇔ ⇒ ⇐ ⇔ ⇑ ⇓ ⇕ → ← ↔ → ← ↔ ↑ ↓ ↕ ↖ ↗ ↘ ↙ ↪ ↩ ⇀ ↼ ⇁ ↽

° ∂ ∞ α β γ δ θ λ μ ν ξ π ρ σ φ ω ε ƒ κ τ υ Γ Δ Λ Σ Π Ω