Page 34 - tmp_Neat

 First, determine how many

force do you have in the
diagram?
 Then, find the angle for each

of the force.
** transfer the diagram into x-y axis, so 15N
that you can clearly see the angle.

60 o
20N

10N
12N

F θ Fx = F cos θ Fy = F sin θ

10 N 0° 10 cos 0°= 10 N 10 sin 0°= 0 N

15 N 60° 15 cos 60°= 7.5 N 15 sin 60°= 12.99

N

20 N 180° 20 cos 180°= -20 N 20 sin 180°= 0 N

12 N 180° 12 cos 180°= -12 N 12 sin 180°= 0 N

∑Fx = -14.5 N ∑Fy = 12.99 N