Help with Forces (NOT Homework)

[Edemardil]

Hey everyone. I have built a Rube Goldberg in Algodoo and I have a section where a small ball is held on the top of a ramp by a lever with an axle. What happens is a larger ball interacts with them, pushing the smaller through the lever and it drops down continuing the machine. Would the only force acting on the small ball and the lever while it is at rest be friction basically?

[swansont]

A picture or drawing would be helpful

[mathematic]

Gravity, air resistance.