Gravity Fall

 Gravity Fall Solution:

#include <stdio.h>

#include <math.h>

int main()

{

  float d,vf,a=9.8,vi=0;

  scanf("%f",&d);

  vf=sqrt(vi+2*a*d);

  printf("The object will hit the ground at %.2f m/s",vf);

return 0;

}