for the thrust you have to multiply the motor torque in newton meters by the gear ratio to get the wheel torque, then to get the thrust in newtons, you have to treat the wheel as a lever with a 1 meter distance to fulcrum through which you are supplying a certain amount of newtons, and the other end of the lever is the radius of your wheel.

most of the equations are in this post:

^at the bottom of this post is a chart and spreadsheet which shows the estimated wind drag force in newtons, watts & pounds based on 0.75 drag coefficient and 0.6m^2 frontal area, and 1.225kg/m^3 air density. these numbers are roughly based on @MoeStooge ‘s reported power consumption during one of his 75mph attempts.