# box2d prismatic joint friction

I know it is possible to add friction to rev joints by enabling motor and adding maxMotorTorque. I want the same for prism joint but only maxMotorSpeed option is available which didn't quite work for me. Is there another way?

The function you are looking for is SetMaxMotorForce. This function is analogous to SetMaxMotorTorque for b2RevoluteJoints.