There are 3 people pulling on an object, the first person pulls with a force of 226 newtons at a direction of 145 degrees the second person pulls with a force of 331 newtons at a direction of 303 degrees. The third person pulls with a force of 377 newtons at a direction of 77 degrees. find the resultant vector . find the resultant force . find the direction

Respuesta :

Answer:

[tex]R=883.74N[/tex]

Step-by-step explanation:

From the question we are told that:

Force 1 [tex]F_1=226N[/tex]

Force 2 [tex]F_2=331N[/tex]

Force 3 [tex]F_3=377N[/tex]

Direction 1  [tex]\theta_1=145 degrees \approx 35 \textdegree (2nd qudrant)[/tex]

Direction 2 [tex]\theta_2=303 degrees \approx 57 \textdegree (3rd qudrant)[/tex]

Direction 3 [tex]\theta_3=77 degrees[/tex]

Generally Resolving forces to X axis is mathematically given by

 [tex]\sum f_x=337cos77+331cos57+226sin35[/tex]

 [tex]\sum f_x=351.596N[/tex]

Generally Resolving forces to Y axis is mathematically given by

 [tex]\sum f_y=337sin77+331sin57+226cos35[/tex]

 [tex]\sum f_x=810.788N[/tex]

Generally the equation for Resultant force R is mathematically given by

 [tex]R=\sqrt{\sum f_x^2+\sum f_x^2}[/tex]

 [tex]R=\sqrt{351.596^2+810.788^2}[/tex]

 [tex]R=883.74N[/tex]