I need help with rigidbody collisions

Hi! i created a grasshopper program for a kangaroo cloth simulation with adjustable gravity, wind, and anchor points, but i can’t seem to make collisions between a rigid sphere and the cloth. How am i supposed to do this?

GrassHopper.3dm (986.2 KB)

kangaeroo.gh (23.7 KB)

Your definition works but the piece of fabric needs to be above the sphere so I can fall down.

Move the fabric upwards so it is in this starting position: