where a c {\displaystyle a_{c}} is the centripetal acceleration. The direction of the force is toward the center of the circle in which the object is moving, or the osculating circle (the circle that best fits the local path of the object, if the path is not circular).
The assassination of Archduke Franz Ferdinand of Austria, heir presumptive to the Austro-Hungarian throne, and his wife Sophie, Duchess of Hohenberg, occurred on 28 June 1914 in Sarajevo when they were shot dead by Gavrilo Princip.
One month after the assassination, Austria-Hungary declared war on Serbia, triggering what would become known as one of the most gruesome wars in European history. Archduke Ferdinand and his wife Sophie Chotek boarding a car just prior to his assassination in Sarajevo.(AP Photo). Archduke Franz Ferdinand and his wife Sophia riding in their car, minutes before their assassination on June 28, 1914.(STR/AFP/Getty Images).n June 28, 1914, Archduke Franz Ferdinand and his wife Sophie were on their way to a hospital in Sarajevo, when a young nationalist pulled out his gun and fired shots at short range. Gavrilo Princip, a 19-year-old Bosnian Serb, hit the heir to the Austro-Hungarian throne in the jugular vein.