We want to finddeflection of light in classical physicsconsidering light as any other object(Tangent lines to circles - Wikipedia, the free encyclopedia I couln't find a better picture)

suppose light is travelling from q to P (7.5*10^10 cm, which we consider the x-axis with origin at O), space is measured in light-second, so x= 1 (= 3*10^10 cm)

distance OP (R) is 2.5 c

F_P = GM/ R^2k=23 593at P (x=0)

Please tell me now if the following is right, or correct what is wrong:

- the total forceFacting on light from -200 (sec) to P is the integral of cos * GM /D^2 = 2.5 *k = 59000

(but it has the units of velocity)

- the total deflection of light = F_T =( t: -200 - 200 sec) 59000*2 = 118000 / C

is this correct so far?