src/main/java/com/jme3/bullet/objects/PhysicsRigidBody.java
/**
     * Apply a central force to the body. Effective on the next time step, then
     * cleared.
     * <p>
     * To apply an impulse, use
     * {@link #applyCentralImpulse(com.jme3.math.Vector3f)}.
     *
     * @param force the force vector (mass times physics-space units per second
     * squared in physics-space coordinates, not null, unaffected)
     */
Apply a central force to the body. Effective on the next time step, then
cleared.

To apply an impulse, use
#applyCentralImpulse(com.jme3.math.Vector3f).

@param force the force vector (mass times physics-space units per second
squared in physics-space coordinates, not null, unaffected)
Apply a central force to the body . Effective on the next time step then cleared . To apply an impulse use #applyCentralImpulse ( com . jme3 . math . Vector3f ) . @param force the force vector ( mass times physics - space units per second squared in physics - space coordinates not null unaffected )
public void applyCentralForce(Vector3f force) {
        Validate.finite(force, "force");
        long objectId = nativeId();
        applyCentralForce(objectId, force);
        activate();
    }
public void applyCentralForce ( Vector3f force ) { Validate . finite ( force , "force" ) ; long objectId = nativeId ( ) ; applyCentralForce ( objectId , force ) ; activate ( ) ; }
Apply a central force to the body.
Apply a central force to the body .