Two forces of 6 lbs and 8 lbs act on an object. If these two forces form an angle of 60, then find the magnitude of the resultant force.

The magnitude of Resultant force is F = 7.21-lbs

Explanation:

Two forces acting on an object which are named as F1 and F2.

The angle formed by the forces are 60-degrees

F1 = 6-lbs, F2 = 8-lbs

theeta = 60°

F = √F1²+F2²-2 (F1) (F2) cos (theeta)

F = √ (6) ² + (8) ²-2 (6) (8) cos (60)

F = √36+64 - (96) cos (60)

F = 7.21-lbs

where,

F1 = magnitude of force 1

F2 = magnitude of force 2

theeta = angle formed by forces