Una caja de 5.0 kg se desliza hacia abajo por la acción de su propio peso por un plano inclinado a 50° con la horizontal si su aceleración es de 5.6 m/s2 calcula el coeficiente de fricción cinético
yexs
![Hola~~ \mathbb{KARIMONTANA} \\ \\ Del~anexo~vemos: \\ \\ Se~sabe~que: \boxed{F=m.a}~--\ \textgreater \ f\acute{o}rmula \\ \\ De~la~figura~calculamos~el~normal~(N)~en ~el~eje~(y)~vea: \\ \\ \sum F_y=0 \\ \\ N-y=0~~--\ \textgreater \ donde~el~[y=29,4N],entonces: \\ \\ N-29,4=0 \\ \\ \boxed{N=29,4_N}~---\ \textgreater \ el~valor~de~la~normal\\ \\](https://tex.z-dn.net/?f=Hola%7E%7E+%5Cmathbb%7BKARIMONTANA%7D+%5C%5C++%5C%5C+Del%7Eanexo%7Evemos%3A++%5C%5C++%5C%5C+Se%7Esabe%7Eque%3A++%5Cboxed%7BF%3Dm.a%7D%7E--%5C+%5Ctextgreater+%5C+f%5Cacute%7Bo%7Drmula+%5C%5C++%5C%5C+De%7Ela%7Efigura%7Ecalculamos%7Eel%7Enormal%7E%28N%29%7Een+%7Eel%7Eeje%7E%28y%29%7Evea%3A+%5C%5C++%5C%5C+%5Csum+F_y%3D0+%5C%5C++%5C%5C+N-y%3D0%7E%7E--%5C+%5Ctextgreater+%5C+donde%7Eel%7E%5By%3D29%2C4N%5D%2Centonces%3A+%5C%5C++%5C%5C+N-29%2C4%3D0+%5C%5C++%5C%5C+%5Cboxed%7BN%3D29%2C4_N%7D%7E---%5C+%5Ctextgreater+%5C+el%7Evalor%7Ede%7Ela%7Enormal%5C%5C++%5C%5C++ "Hola~~ \mathbb{KARIMONTANA} \\ \\ Del~anexo~vemos: \\ \\ Se~sabe~que: \boxed{F=m.a}~--\ \textgreater \ f\acute{o}rmula \\ \\ De~la~figura~calculamos~el~normal~(N)~en ~el~eje~(y)~vea: \\ \\ \sum F_y=0 \\ \\ N-y=0~~--\ \textgreater \ donde~el~[y=29,4N],entonces: \\ \\ N-29,4=0 \\ \\ \boxed{N=29,4_N}~---\ \textgreater \ el~valor~de~la~normal\\ \\")
![Por~\acute{u}ltimo~tenemos~que~ calcular~el~coeficiente~de~fricci\acute{o}n \\ cin\acute{e}tico ~(\mu). \\ \\ Se~sabe~que:\boxed{Fr=\mu.N } \\ \\ Reemplzando~valores~de~[Fr=9,73N~~y~~\vec{N}=29,4N~] \\ \\ 9,73N=\mu.(29,4N) \\ \\\boxed{ \boxed{\mu=0,3}}~~---\ \textgreater \ el~coeficiente~de~fricci\acute{o}n~cin\acute{e}tico\\ \\\mathbb{tttttttttttttttttttttttttttttttttttt} \\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Espero~haber~ayudado!! \\ \\](https://tex.z-dn.net/?f=Por%7E%5Cacute%7Bu%7Dltimo%7Etenemos%7Eque%7E+calcular%7Eel%7Ecoeficiente%7Ede%7Efricci%5Cacute%7Bo%7Dn+%5C%5C+cin%5Cacute%7Be%7Dtico+%7E%28%5Cmu%29.+%5C%5C++%5C%5C+Se%7Esabe%7Eque%3A%5Cboxed%7BFr%3D%5Cmu.N+%7D+%5C%5C++%5C%5C+Reemplzando%7Evalores%7Ede%7E%5BFr%3D9%2C73N%7E%7Ey%7E%7E%5Cvec%7BN%7D%3D29%2C4N%7E%5D+%5C%5C++%5C%5C+9%2C73N%3D%5Cmu.%2829%2C4N%29+%5C%5C++%5C%5C%5Cboxed%7B+%5Cboxed%7B%5Cmu%3D0%2C3%7D%7D%7E%7E---%5C+%5Ctextgreater+%5C+el%7Ecoeficiente%7Ede%7Efricci%5Cacute%7Bo%7Dn%7Ecin%5Cacute%7Be%7Dtico%5C%5C++%5C%5C%5Cmathbb%7Btttttttttttttttttttttttttttttttttttt%7D++%5C%5C%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7E%7EEspero%7Ehaber%7Eayudado%21%21++%5C%5C++%5C%5C++ "Por~\acute{u}ltimo~tenemos~que~ calcular~el~coeficiente~de~fricci\acute{o}n \\ cin\acute{e}tico ~(\mu). \\ \\ Se~sabe~que:\boxed{Fr=\mu.N } \\ \\ Reemplzando~valores~de~[Fr=9,73N~~y~~\vec{N}=29,4N~] \\ \\ 9,73N=\mu.(29,4N) \\ \\\boxed{ \boxed{\mu=0,3}}~~---\ \textgreater \ el~coeficiente~de~fricci\acute{o}n~cin\acute{e}tico\\ \\\mathbb{tttttttttttttttttttttttttttttttttttt} \\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Espero~haber~ayudado!! \\ \\")
0 votes
Thanks 4