Question

Three forces of 5n, 7n, and 8n are applied to an object. If the object is in a state of equilibrium: calculate the angle between the lines of action of the 5 N and 7 N forces.

Answer 1

what is the angle of the 8N force?

Answer 2

suppose it is a

Answer 3

no angle is given

Answer 4

since it is in equlibrium, can i draw it as a triangle?

Answer 5

the object is in equilibrium,so the resultant of the 3 forces must be 0

Answer 6

yeah,you can..it will be better.. :)

Answer 7

that's what i did
and i tried to use cos law to find the angle
cuz it is given 3 sides, but then i got the wrong ans