Cooling fan not working

#1

My car is starting to run very hot when it is already warm and running at idle speed-like when it is stopped at a light. I have run it while it was warm, and did not see the radiator fan come on. If I hit the fan motor with a wrench it starts.
Is this indicative of a bad fan motor? Is it likely that the sensor will be bad in addition to the fan?

#2

When you spank something and it works, you spanked the right thing.

#3

Works on Kids too.

#4

Yes, it sounds like a bad fan motor.