<p>@Xiggi I’ve also found this forumla t[(r1r2)/(r2 + r1)] = d. The d in the equation is supposed to be the half of the distance and t is the time,which is in this case 1.</p>
<p>@Xiggi I’ve also found this forumla t[(r1r2)/(r2 + r1)] = d. The d in the equation is supposed to be the half of the distance and t is the time,which is in this case 1.</p>