bouncing ball and Matlab

[enkar]

Hi

I'm new to Matlab and I'm working on a bouncing ball project modeled
as a mass-spring-damper. The ball bounces on and off of the spring-damper until it's all damped out.

I'm having trouble finding multiple solutions to an expression with
the solve command. I'd would like to know all the solutions within a
range instead of just the first one. I don't know if finding multiple
intercepts is possible or not. I'm not look for zeros.

I've been at this for hours and hours. If anyone has tips I would appreciate it.