if again u dare to solve :)

JEE Mains 2015 Sample Questions › Mechanics questions › if again u dare to solve :)

consider a string attached to a pully(massless & frictionless).Take a part of string attached directly with the pully.Draw FBD.You will find that the string is pulled by two tensions of equal magnetude.As they are equal, so they should not move what ever different mass is attached to it. Then the question is "WHY THE STRING MOVES ?"

#Physics #Mechanics

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Indayan Bera ·2012-06-15 23:03:12

Please rephrase your question..could not understand everything you said !!!!!!!!!

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Vivek @ Born this Way ·2012-06-19 02:30:19

You need to understand more clearly how the action-reaction pair according to Newtons third law work. In addition, we also consider that the rope is massless.

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Saumya Sambit ·2012-06-20 02:40:18

gravity is more powerful than tension

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abhasup1 ·2012-06-29 03:27:27

seee,the tension forces cancel out in rope there itself,
but u even have to consider the force due to weight of a mass attached to one end of rope which causes it to move

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Basic Integral Calculus Operators Symbols Matrix Cases

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∫ ∫ ∫ ∫ ∫ ∬ ∬ ∬ ∬ ∬ ∭ ∭ ∭ ∭ ∭ ⨌ ⨌ ⨌ ⨌ ⨌

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° ∂ ∞ 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

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