laws of motion

AIEEE Questions › Mechanics questions › laws of motion

#Physics #Mechanics

UP 0 DOWN 0 0 5
Post on FacebookPost anonymously?

5 Answers

1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-01-03 11:23:04

asnwer is d))

UP 0 DOWN 0
Post on FacebookPost anonymously?

62

Lokesh Verma ·2009-01-03 11:24:28

not very very difficult..

see there will be 2 forces on the mass by things other than the clamp

One is by mg and another by 2 T's ... (one horizontal, another vertical)

vertical net force = mg+Mg

Horizontal Mg

bcos T=Mg

Also, you can thus say that these forces are balanced by the clamp..

So option should be "D"

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-01-03 11:27:43

ya ......... so u get d resultant by (T1^2+T2^2)^1/2

UP 0 DOWN 0
Post on FacebookPost anonymously?

3

msp ·2009-01-03 11:30:03

why the tensions r same sir.
what happens to the tension on both sides of the pulley if it rotates

UP 0 DOWN 0
Post on FacebookPost anonymously?

62

Lokesh Verma ·2009-01-09 13:46:58

as long as the pulley is massless and friction is not there, you can assume that tension is zero..

the proof comes from something much more basic.... that is balancing torque or net force..

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