This is the largest city in the Canadian province of British, Columbia, and is just north of the U. S. border.

Vancouver

Explanation:

Vancouver is the most populous city in the province of British Columbia, and it is the third-largest city in Canada. It is located on the western coast of Canada, although Vancouver Island is blocking it's direct access to the Pacific Ocean. On the west of it is the Strait of Georgia.

Vancouver is also just a bit more northerner of the U.S. border and the Washington state.

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