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Introductory Physics Homework Help
Plotting the graph of Friction Force vs. time (Laws of motion)
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[QUOTE="SpectraPhy09, post: 6595290, member: 695657"] [B]Homework Statement:[/B] Coefficient of friction between all the surfaces in 0.5. Which diagram would describe the friction between the ground and the 2Kg Block when f = t N is applied on the 2kg Block? It is given that the string is not taut initially.(Plz check the the diagram in the image attached). take g= 10m/s^2 [B]Relevant Equations:[/B] F = ma F(friction) = μmg F.B.D Of first block (I have shown only the horizontal Forces) [ATTACH type="full"]296466[/ATTACH] f1(max) = [B]μ[/B] (1kg)(g) = 0.5 * 10 = 5N F.B.D Of the second Block [ATTACH type="full"]296468[/ATTACH] f2(max) = [B]μ[/B] (3kg)(g) = 15N Now the string will become taut and the tension will start acting when f = t = 5N But for 0<f<5N there will be no motion between the 1 kg and the 2 kg block so the f2=0 but when f > 5N the string will become taut and the friction the Tension will start will acting now suppose the acceleration of the 1 kg block in left direction is a1 then, (1)a1 = f - T - f1 and suppose the acceleration od the 2kg block is a2 then, (2)a2 = f1 - f2 - T But how will be plot the graph between f2 and t after t=5 since we do not know the T ension neither the acceleration of the block. Also in the option for 0<t<5 there is different graph that mine. Plz can someone help me how to solve this problem ahead? [/QUOTE]
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Introductory Physics Homework Help
Plotting the graph of Friction Force vs. time (Laws of motion)
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