The questions is: A steel ball is dropped from abuilding’s roof and passes a win

Question

The questions is: A steel ball is dropped from abuilding’s roof and passes a window, taking 0.125 s to fallfrom the top to the bottom of the window, a distance of 1.20 m. Itthen falls to a sidewalk and bounces back past the window, movingfrom bottom to top in 0.125 s. Assume that the upward flight is anexact reverse of the fall. The time the ball spends below thebottom of the window is 2.00 s. How tall is the building? For the most part I understand the problem but I dontunderstand why when calculating h3, the t=1.00s, instead of2.0s The questions is: A steel ball is dropped from abuilding’s roof and passes a window, taking 0.125 s to fallfrom the top to the bottom of the window, a distance of 1.20 m. Itthen falls to a sidewalk and bounces back past the window, movingfrom bottom to top in 0.125 s. Assume that the upward flight is anexact reverse of the fall. The time the ball spends below thebottom of the window is 2.00 s. How tall is the building? For the most part I understand the problem but I dontunderstand why when calculating h3, the t=1.00s, instead of2.0s

Explanation / Answer

It said 'The time the ball spends below the bottom of the window is2.00 s' Because the ball has to travel down and bounce back up, it takesonly 1.00 second to travel between the bottom of the window to the ground. Does this help?

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