dbt2

AIEEE Answers › Mechanics questions › dbt2

answer given is b) but shouldnt it be a)

becoz Fnet=F_c-W=m(2gR)/R-mg=mg

#Physics #Mechanics

UP 0 DOWN 0 0 8
Post on FacebookPost anonymously?

8 Answers

3

msp ·2009-09-22 18:04:23

If the initial point is set as origin,the qn asks abt lt_x-0^-f(x).Where f(X) is the netforce.

UP 0 DOWN 0
Post on FacebookPost anonymously?

24

eureka123 ·2009-09-22 19:08:27

what are u saying ???????????
cant get u

UP 0 DOWN 0
Post on FacebookPost anonymously?

106

Asish Mahapatra ·2009-09-22 21:21:57

velocity is √2gR which is obtained from WE principle.

Drawing FBD when it just reaches the plane, it still undergoes a circular motion, so u have to consider the centrifugal force as well.

UP 0 DOWN 0
Post on FacebookPost anonymously?

24

eureka123 ·2009-09-23 00:44:20

looks like I made a mistake so late in night[3][3]...sorry for disturbing u all

N-mg=mv²/r=2mg
=>N=3mg

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Pratikshit Singh ·2009-09-23 11:33:43

i still dont get that how is it 3mg upwards???

UP 0 DOWN 0
Post on FacebookPost anonymously?

24

eureka123 ·2009-09-23 11:35:17

have u read the hidden content in post #5

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

Pratikshit Singh ·2009-09-23 11:44:01

ok but why was it made like that ???(hidden)

UP 0 DOWN 0
Post on FacebookPost anonymously?

1

$ourav @@@ -- WILL Never give ·2009-09-23 13:07:11

yup,asish is right

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