Distance(t) = Distance(t - dt) + (Rate_of_Change_of_Distance) * dt
INIT Distance = 0
Rate_of_Change_of_Distance = Velocity
Distance_2(t) = Distance_2(t - dt) + (Rate_of_Change_of_Distance_2) * dt
INIT Distance_2 = 0
Rate_of_Change_of_Distance_2 = Velocity_2
Velocity(t) = Velocity(t - dt) + (Rate_of_Change_of_Velocity) * dt
INIT Velocity = 0
Rate_of_Change_of_Velocity = acceleration
Velocity_2(t) = Velocity_2(t - dt) + (Rate_of_Change_of_Velocity_2) * dt
INIT Velocity_2 = 0
Rate_of_Change_of_Velocity_2 = acceleration_2
acceleration = net_force/mass
acceleration_2 = net_force_2/mass_2
applied_force = 10
mass = 2
mass_2 = 2
net_force = applied_force+opposing_force
net_force_2 = -(applied_force+opposing_force_2)
opposing_force = 0
opposing_force_2 = 0

Time Specs Settings