Shortly after 9/11 the U. S. Patriot Act was passed and one of the more significant components of that legislation involved police agencies and pertained directly to the relaxing of restrictions on inter and intra-agency sharing of valuable between law enforcement organizations at all levels of government.

Shortly after 9/11 the U.S. Patriot Act was passed and one of the more significant components of that legislation involved police agencies and pertained directly to the relaxing of restrictions on inter and intra-agency sharing of valuable information between law enforcement organizations at all levels of government.

Explanation:

The 9/11 crises in US exposed the challenges most of the organisation had regarding to information sharing. Some of those event could have been avoided, had it been some agency that had hint about some individuals  that boarded the plan having questionable past.

After the incident, information sharing among the agencies was strengthened. This had led to prevent of similar event from happenenig.

there is an explationation of this on a site called crash   course world history 1

we can solve this via the kinematic equation:

where the vertical velocity is zero and so:

since the height of the building is 29.3 meters then:

the ball was in motion for approximately 2.45 seconds