Blower Motor Problems on 1998 Dodge Ram Van 1500

Sometimes when I start the engine the blower motor will not come on untill I am going down the road. While I was coming to work it started slowing down by the time I got to work it was just barely blowing and the motor felt pretty hot.Could this be the resistor or motor itslef.

Asked by for the 1998 Dodge Ram Van 1500
i have the same problem what i do is tap the motor with a long rod sometimes it still gets stuck