1) Primitives->create nurbs->plane []

2) Change the U patches and V patches to 20

3) Scale it 7 units in the X, Y, and Z

4) Translate it to 5 units in the Y

5) Bodies->create soft body

6) Bodies->create springs

7) Change the damping to 0.05

8) Primitives->create nurbs->sphere

9) Scale it to 3 in the X,Y, and Z

10) Bodies->create passive rigid body[]

11) Check the particle collision check box

12) Under performance attributes, stand in= sphere

13) Select your soft body, select your sphere

14) Connect->connect to collision

15) Deselect your sphere

16) Fields->create gravity

17) Select and hide the springs

18) Now you can hit play, and you have a rigid/soft collision

*) Note: you may want to play with collision layers, etc.

Springs with too much damping can cause the plane to explode

Check bounciness in collision, etc.esto, all the movements are now keyframed and quicker to playback and render