npt2 14

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The elogation in spring 1 just after breaking spring2

A) mg/k B) 2mg/k C) mg/2k D) none

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6 Answers

UTTARA ·2010-03-01 04:20:01

?????????

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Tapas Gandhi ·2010-03-01 09:15:06

Tsin30=mg

T=kx

but T=2mg

so,

x=2mg/k

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UTTARA ·2010-03-01 09:19:44

Even I used ure method

But ans given was A

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Tapas Gandhi ·2010-03-01 09:26:00

initially
2Tsin30=mg

since one string is cut
T=kx

but T=mg

so,

x=mg/k

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UTTARA ·2010-03-01 09:29:28

OH !! GOT MY MISTAKE

THANKS

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Kalyan Pilla ·2010-03-01 09:50:32

There is absolutely no problem with the answer, coz its correct.............

But if this is wat is to be done, what is the significance of the word "just after" in the question??

and wat is the need of the second spring in NEcase[7][7]

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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

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npt2 14

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