"half circle" input force in half car model

Hi. I'm trying to simulate a half car model as it passes over a obstacle. My problem is that the obstacle has the shape of a half circle. How do I optain this input force? How could I model this in simulink? Thank you

Answer 1

[arvind j]

A=1;
T=2*0.01;
f=1/T;
t=0:0.001:0.3;
idx=t<0.1 |  t>0.11;
y=A*sin(2*pi*f*(t-0.1));
y(idx)=0;
yt=[t;y];

Use this and save it as .mat file. You can use signal editor to load the file and use it as a road input