Physical pendulum

Hello,

I want to calculate the force of a physical pendulum with the 1.09Kg mass which is released from 91° angle and hits an object. I have set mgh=1/2mv^2 then W=1/2mv^2  (W=F*X) where x is the circel sector the pendulum travels from 91° to 0° , the pendulum hits the object at 0°, is the formula below correct to calculate the the force that hits the object?

F=(1/2mv^2)/x ??

Best regards

Ali