Finding COM

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The mass of a square plate of side length ' 2l ' is ' M '. A semi circular portion is cut off and placed as shown. Find the COM of the resulting distribution.

Fast plz!

#Physics #Physics Olympiad

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4 Answers

Ashish Kothari ·2011-07-15 03:29:13

Unsure about the answer . My answer comes to l/12 distance from the midpoint of the square. Confirm the answer. I'll post the answer thereafter.

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Vivek @ Born this Way ·2011-08-08 07:20:18

Don't know the answer.. Anyhow I solved it by some theorem easily..

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Ashish Kothari ·2011-08-08 07:23:47

What answer did you get?

I applied negative mass concept.

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Vivek @ Born this Way ·2011-08-08 08:35:40

I applied negative mass concept.

Yeah that is okay.. no problem.. Don't know the answer.. can't find the copy in which i had solved it..

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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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Finding COM

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