Question

two forces f1 and f2 of magnitude 5n each inclined to each other at 60 degree act on a body. find the resultant force acting on the body.

Answer 1

f1=f2
theta=60°
so,
R= √ (2f1^2 + 2f1^2 ×1/2)
R= √ (2f1^2 + f1^2)
R= √ (3f1^2)
R= √ (3) × f1


f1=5N
therefore...
R= 5√ (3)