mechanics concept

JEE Mains Coaching › Mechanics questions › mechanics concept

A triangular plate is hung such that it is in the horizontal plane..we use 3 threads and tie them to one of the vertices each and the other to the roof let the tensions be T1,T2,T3 and the lengths of the sides opposite to the tensions b l1,l2,l3
Note: the strings are perpendiclar to the horizontal plane
mas of plate is m
a T1/l1=T2/l2=T3/l3
b T1/l2.l3=T2/l1.l3=T3/l1.l2
c T1=T2=T3=mg/3
d none of these

#Physics #Mechanics

UP 0 DOWN 0 2 3
Post on FacebookPost anonymously?

3 Answers

1

skygirl ·2009-01-22 23:31:30

this was a doubt of ith power ... looooooooooooong ago...
nishant bhaiya may gv the link ...

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

skygirl ·2009-01-22 23:37:16

yep got it :)

http://targetiit.com/iit_jee_forum/posts/good_question_678.html

UP 0 DOWN 0
Post on FacebookPost anonymously?

33

Abhishek Priyam ·2009-01-22 23:40:30

Doubt of Rohan..

:P

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