Inertial forces of a slider crank

[Jstuff]

Homework Statement

Hello, I have an exam later in the week and I'm trying to understand how to this problem.

Homework Equations

Sum of forces.
Sum of moments.

The Attempt at a Solution

I broke the mechanism into 3 pieces, the crank, connecting rod, and slider and then began to analyze each piece with the sum of moments and sum of forces on each. It seems that I am missing too many unknowns. For example on this sum of forces on crank what is the mass and acceleration of the crank.

Thanks in advance for the help.[/B]

 

[billy_joule]

It seems that I am missing too many unknowns. For example on this sum of forces on crank what is the mass and acceleration of the crank.

You aren't given the mass of the crank because you don't need it.
The only information you need from the crank is what point B is doing - the direction and magnitude of it's acceleration and velocity.
Point C is constrained to B and the horizontal plane so you can find it's linear a & v and then the magnitude of the F_x on it.
I don't know what 'equivalent offset inertial force' is but you can find the angular and translational velocities and accelerations of BC and then the forces on BC.