The crystal ball says you have
It is not working, Ball is moving correctly but, not rotating like any real physics ball rotate when drop on ramp
Did you Switch the Collision mask property from Use collision polygon to Circle?
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All Changes In Done But Ball Not.........
kindly watch this video
Hmm, maybe the friction is too low causing the ball to just slide instead of rolling. Try increasing the friction, if that doesn't help - you could post the stripped-down version of your project here and I'll take a look
Solved
Balls Needs Circle Collision With Half (0.4) Friction Density is default
now its worked