I need to calculate the force of a punch for a test I'm running. I have the numbers, but it seems that I have to backwards to find my number!. I have the force of a punch in G's given by a sensor (accelerometer) I have Ft/s (feet per second) (high speed Camera) will have anyway by thisafternoon. I have the mass (6lb moving "fist" on a pnumatic cylinder) I need Ft/lbs of the punch. Can anyone give me my formula? Many Many thanks indeed!