By making some tests with the physics engine I’ve noticed that ‘kinematic’ objects don’t express any friction while colliding with dynamic objects. For example there is a moving platform which is a kinematic object and a ball (a dynamic one). The platform is working perfectly as an obstacle: the ball bouncing off and so on, but there is no any friction between objects. For example if the ball is on the platform and the platform is moving slowly then the ball is not moving with the platform, like if there is zero friction between the objects (but it is not set to zero). But when the platform is ‘dynamic’ all is working fine: friction is active, so the ball is moving with the platform. Does it mean that kinematic objects do not have friction? Am I right?
As you’ve discovered, you will need your platform to be dynamic if you want friction to be respected