12.01.2018 Views

f_t_septima_edicion

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

58 Capítulo 3 M <strong>edicion</strong>es técnicas y vectores<br />

C = 40 N /<br />

1 /<br />

52° \ /<br />

¡ y<br />

i<br />

|<br />

1<br />

_ _ j----------------------<br />

B = 30N<br />

I<br />

l<br />

i _ ...<br />

0 Om<br />

/<br />

H<br />

i<br />

A = 20 N<br />

(b) Polígono de vectores<br />

Figura 3.20<br />

Ax = 20 N<br />

(a)<br />

A =0<br />

i 31<br />

(b)<br />

Figura 3.21 Cálculo de las componentes de los vectores.<br />

(c)<br />

Tabla 3.6<br />

Tabla de componentes<br />

Vector Ángulo (f>x Componente x Componente y<br />

A = 20 N 0° A x = +20 N Ay = 0<br />

B = 30 N<br />

LO Oo<br />

Bx = -(30 NXcos 30°) B , = (30 N)(sen 30°)<br />

= -26.0 N ’ = 15.0 N<br />

C = 40 N 52° Cx = -(40 N)(cos 52°) Cy = -(40 N)(sen 52°)<br />

= -24.6 N ’ = -31.5 N<br />

R e Rx = 2Fr= -30.6 N Ry = '2 Fy = -16.5 N

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!