Question

Two forces are acting at an angle of 120°. the bigger force is 40n and the resultant is perpendicular to the smaller one. the smaller force is

Answer 1

the smaller force is 20N

Answer 2

Answer:

Solution-

Tan (α) = psin (θ)/p + qcos (θ).

Alpha = 90, tan90 = 1/0.

θ = 120 = 180 - 120 = 60, sin60 = root3/2.

Cos60 = 1/2.

1/0 = p (root3/2)/p-40 (1/2).

P = 20.