An object fell from the window of a tall building and hit the ground within 12.0 seconds. If the wheel is 9.80 m / s², then the height of the window is above the ground

Réponse :
Explications :
■ hello !
■ h = 0,5 x 9,8 t² = 4,9 t² avec t = 12 secondes
donc hauteur = 705,6 mètres !
( 2315 feet ! ☺ )