Will mark brainliest if answered correctly! the building we are going to be using is going to be 50 feet tall. this will be your ℎ0 in any question that it says you are launching or dropping something from the top of the building. while setting up a fireworks display, you have to drop your cell phone down to your co-worker who is on the ground. how long will it take the phone to fall to the ground? equation: ℎ(t) = −162 + ℎ0