AIEEE04

IIT JEE Forum › Mechanics questions › AIEEE04

1) A particle moves in a straight line with retardation proportional to its displacement. Its loss of kinetic energy for any displacement x is proportional to:

(a) x²

(b) e^x

(d) logx

#Physics #Mechanics

UP 0 DOWN 0 0 4
Post on FacebookPost anonymously?

4 Answers

JOHNCENA IS BACK ·2009-04-22 05:46:33

(a)

UP 0 DOWN 0
Post on FacebookPost anonymously?

Anirudh Narayanan ·2009-04-22 05:47:56

correct, cena

explanation please

UP 0 DOWN 0
Post on FacebookPost anonymously?

JOHNCENA IS BACK ·2009-04-22 05:51:51

W=K(f)-K(i)=loss in kinetic energy= âˆ«kxdx={kx²/2}

[since force =kx (given),where k is proportionality constant]

UP 0 DOWN 0
Post on FacebookPost anonymously?

JOHNCENA IS BACK ·2009-04-22 06:06:03

so,loss in KE=kx²/2

since k/2 is constant so

loss in KE is directly proportional to x²

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]

AIEEE04

4 Answers

Your Answer

Add Image

Similar Questions