qml animation

[vinayaka]

Behavior on y {
        SequentialAnimation {
            SmoothedAnimation{ velocity: 800 }
//            RotationAnimation{properties: "angle"; to: 100}
                             }
    }

Behavior on y {
        SequentialAnimation {
            SmoothedAnimation{ velocity: 800 }
//            RotationAnimation{properties: "angle"; to: 100}
                             }
    }

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this is code where a ball falls at mouseclick.
i want to rotate and bounce the ball when it places in a grid . I used the above code but it does not work for me. Can any one help me in this?