help me to fix this finveser code

Answer 1

[Chuguang Pan]

syms t;
v01 = 30;
v02 = 25;
h1 = 25;
h2 = 30;
g = 9.78;

x1(t) = v01*t;
y1(t) = h1 - (1/2)*g*t^2;
y1(finverse(x1,t))

ans = 

[Chuguang Pan]

The y1 should be a symfunction if you want to call it with input.

y1 = h1 - (1/2)*g*t^2; % y1 is sym expression

y1(t) = h1 - (1/2)*g*t^2; % y1 is sym function