question regarding component of vector

JEE Mains 2015 Papers › General Physics questions › question regarding component of vector

a vector along horizontal 'ma'
i need its component up the incline,it can be done in two ways & i get two answers 'ma cos Î¸' and 'ma/cos Î¸'
i was wondering which is correct and why ?

#Physics #General Physics

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9 Answers

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kunl ·2011-03-23 20:41:01

i m getting same by both method ma*cos@

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s4m4n ·2011-03-23 20:43:53

how?

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s4m4n ·2011-03-23 21:00:10

what will be component of L in this

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samagra Kr ·2011-03-24 06:12:27

Lcos Î¸, COMPONENT IS ALWAYS LESS THAN ACTUAL VALUE

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kunl ·2011-03-24 06:33:09

component of L along what??

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Abhisek ·2011-03-24 06:42:42

@ Kunl : Component of a vector is always lesser in magnitude than the actual vector...

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kunl ·2011-03-24 06:43:53

i asked the original asker of problem he wanted component of L along wat?

btw is it really always less?..i never knew [3][3]

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Abhisek ·2011-03-24 07:06:30

Yeah, and the component he asked for was marked with a question mark in that diagram! [202]

Anyways , the following is a logic i use : (no guarantee that it's correct)

edit in the last sentence : ....you are actually reducing the magnitude of vector L, which is unacceptable.

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kunl ·2011-03-24 07:43:28

thank you![1]

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Your Answer

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