The motor will apply a force up to a maximum force to achieve the target velocity in degrees per second.

The motor tries to reach /motor.targetVelocity/ angular velocity in degrees per second. The motor will only be able to reach /motor.targetVelocity/, if /motor.force/ is sufficiently large. If the joint is spinning faster than /motor.targetVelocity/ the motor will break. A negative /motor.targetVelocity/ will make the motor spin in the opposite direction.

The /motor.force/ is the maximum torque the motor can exert. If it is zero the motor is disabled.

The motor will brake when it is spinning faster than /motor.targetVelocity/ only, if /motor.freeSpin/ is false. If /motor.freeSpin/ is true the motor will not brake.

	// Make the hinge motor rotate with 90 degrees per second and a strong force.
	hingeJoint.motor.force = 100;
	hingeJoint.motor.targetVelocity = 90;
	hingeJoint.motor.freeSpin = false;

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        hingeJoint.motor.force = 100;
        hingeJoint.motor.targetVelocity = 90;
        hingeJoint.motor.freeSpin = false;
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		hingeJoint.motor.force = 100
		hingeJoint.motor.targetVelocity = 90
		hingeJoint.motor.freeSpin = false

Modifying the motor automatically enables the motor by setting HingeJoint.useMotor to true.