#include <stdio.h>
#include <math.h>

const double g = 9.81;

double height(double t);

int main() {
    double t = 0.05;
    double dt = 0.05;
    while (t <= 1.0001) {
        double h = height(t);
        printf(
            "t=%.2f sec\th=%.1f cm\n",
            t,
            h*100.
        );
        t += dt;
    }
    return 0;
}

double height(double t) {
    return (
        g*t*t/8.
    );
}