The toggle switch consists of a cocking lever that is pinned to a fixed frame at A and held in place by the spring which has unstretched length Determine the magnitude of the resultant force at A and the normal force on the peg at B when the lever is in the position shown Given 200 mm k 5N m a 100 ...

Using the law of cosines and the law of sines 1 a b 2 ca b cos18 ...

The toggle switch consists of a cocking lever that is pinned to a fixed frame at A

Question:

The toggle switch consists of a cocking lever that is pinned to a fixed frame at A and held in place by the spring which has unstretched length δ. Determine the magnitude of the resultant force at A and the normal force on the peg at B when the lever is in the position shown.

Given:

δ = 200 mm

k = 5N/m

a = 100 mm

b = 300 mm

c = 300 mm

θ = 30 deg

a+b, 180°-0- k(1-8)