vectors from physics

AIEEE Guidance › 3D and Vectors questions › vectors from physics

1. There are 2 vectors, one in the horizontal direction and other is inclined at an angle of 60⁰ with the vertical.The resultant is in vertical direction and has magnitude P units.The 2 vectors are:

a)P,2P
b)P,Pâˆš3
c)2P,Pâˆš3
d)none of these.

Plz show the ans with steps..

#Mathematics #3D and Vectors

UP 0 DOWN 0 0 2
Post on FacebookPost anonymously?

2 Answers

106

Asish Mahapatra ·2010-10-29 11:52:59

Let the hori vector be A and the other be B.

Then B(y) = P
=> |B|*cos(60) = P
=> |B| = 2P

=> B = -2P*√3/2 i + P j
= - P√3 i + P j

A(x) + B(x) = 0
=> A = A(x) i = P√3 i

So, |A| = P√3 and |B| = 2P

UP 0 DOWN 0
Post on FacebookPost anonymously?

chessenthus ·2010-10-29 13:25:31

correct reply.

thank you.

UP 0 DOWN 0
Post on FacebookPost anonymously?

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

Close [X]

vectors from physics

2 Answers

Your Answer

Add Image

Similar Questions