Nicko wrote:
The roller and motor is 'inside' the free body. It can not show up any equations... The free body is the entire platform and everything mounted to it.
The only forces acting on it is the aero pressure distribution and the reaction on/from the load cell. Now apply equilibrium conditions.
Wait...didn't you say to do the free-body torque equilibrium around the contact patch? How can the motor and roller be inside the free body then?
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