My object does not want to interact with another

Im trying to make a a coffee bean bounce of a cup and Ive followed the 2d tutorials but my coffee bean simply goes right behind the cup. It just gets pulled down with gravity and does not bounce off of the cup. How can I fix this? Ive follwed these tutorials:
https://unity3d.com/learn/tutorials/modules/beginner/2d/rigidbody2d?playlist=17093
https://unity3d.com/learn/tutorials/modules/beginner/2d/sliding-bouncing-2d?playlist=17093

Edit: Ive fixed my problem but I got another. My coffee bean is an oval shape and now it only bounces but does not rotate like in the second video. It doesnt act like a real ball

You should probably have the freeze rotation in z activated. Try to deactivate. in the rigibody2D of the ball 68183-captura-de-pantalla-2016-04-16-a-las-235956.png

The Ball and the platform have a rigibody2D. the kinematic option activate in platform and deactivate in ball.

Other problem should be the material friction where you set the bounce have the friction to 0.0 change it.
68187-captura-de-pantalla-2016-04-17-a-las-00447.png