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A 2 kg block slides on a horizontal floor with a speed of 4m/s. It strikes a uncompressed spring, and compresses it till the block is motionless. The kinetic fricion force is 15 N and spring constant is 10,000 N/m. The spring compresses by?

PS This is pretty simple

#Physics #Mechanics

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Subash ·2009-04-23 21:54:48

i dont want answer Just post the equations(energy conservation)

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Subash ·2009-04-23 21:56:54

Check this please

1/2mv²=Fx+1/2kx²

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Anirudh Narayanan ·2009-04-23 21:59:24

does friction act before the block strikes the spring?

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Anirudh Narayanan ·2009-04-23 22:07:16

WE HAVE TO ASSUME THAT FRICTION ACTS ONLY AFTER THE BLOCK STRIKES THE SPRING

IF THAT IS THE CASE THEN THE EQUATION THAT U GAVE IS CORRECT AND WILL GIVE U THE CORRECT

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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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