elasticity

VITEEE Help › Mechanics questions › elasticity

when a metal wire elongates by hanging a load on it , the gravitational potential is decreased
then
a)this energy completely appears as increased kinetic energy of the block
b)this energy completely appears as incresed potential energy of wire
c) this energy completely appears as heat
d)none of these

#Physics #Mechanics

UP 0 DOWN 0 0 9
Post on FacebookPost anonymously?

9 Answers

1

prateek punj ·2009-04-29 08:02:48

i think (b).....

becoz potential energy = 1/2 stress*strain....

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

vector ·2009-04-29 08:04:54

sry bt its nt rite ans

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

prateek punj ·2009-04-29 08:05:36

kkkkkk i too thought the same....

UP 0 DOWN 0
Post on FacebookPost anonymously?

3

msp ·2009-04-29 08:25:32

the block will be in oscillations. so i thot d.

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

vector ·2009-04-29 08:28:08

see ma basic doubt is wer d energy ll go

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

ANKIT MAHATO ·2009-04-29 08:29:53

d

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

vector ·2009-04-29 08:31:01

yup u r rigt plzz tell wer d energy wud go

UP 0 DOWN 0
Post on FacebookPost anonymously?

3

msp ·2009-04-29 08:33:28

some energy goes for the block as K.E and some as P.E of the spring and some of the remaining as dissipations such as heat,sound or any other means

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

vector ·2009-04-29 09:27:44

r u sure

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