PONTIFICIAUNIVERSIDADCATÓLICADELPERÚ

EstudiosGeneralesCiencias

ESTÁTICA– 2016‐1

 

           

 

                 

Tarea1– EquilibrioenS.R.

Problema1:SepidedibujarlosDCLdelossiguientessistemas.Lospesosdeloselementosson despreciables salvo indicación contraria es decir, que se muestre el valor de ‘m’ .Todaslafuerzas,conocidasodesconocidas,debenserindicadas.

          

 

 

            

Prof.DennisSantos

Problema 2: A 35 N axial force at B isrequired to open the spring‐loadedplunger of the water nozzle. DeterminetherequiredforceFappliedtothehandleat A and the magnitude of the pinreaction at O. Note that the plungerpasses through a vertically‐elongatedholeinthehandleatB,sothatnegligibleverticalforceistransmittedthere

 

Problema3:Whenthe0.05kgbodyis inthe position shown, the linear spring isstretched 10mm.Determine the force Prequired tobreakcontactatC.Completesolutions for a including the effects oftheweightand b neglectingtheweight.

 

Problema4:ThememberOBC andsheaveatCtogetherhaveamassof500kg,witha combined center mass at G. Calculatethemagnitudeof the force supportedbythe pin connection at O when the 3 kNload is applied. The collar at A canprovide support in the horizontaldirectiononly.

Problema5:The25kgrectangularaccessdoor is held in the 90 open position bythesinglepropCD.DeterminetheforceFin the prop and the magnitude of theforcenormaltothehingeaxisABineachofthesmallhingesAandB.

Hinge: rótula la cual NO restringe losgiros .

Notasgenerales:entregarenhojasengrapadas comomáximoel19deabrilenclase.Sisedetectaqueelalumnohacopiadoseelevaráun informe al Decanato. Dibujar claramente los DCL con susdimensionesyfuerzasactuantes.