Q. A brick is thrown vertically upward with an initial speed of 4.80 m/s from the roof of a building. If the building is 74.0 m tall, how much time passes before the brick lands on the ground?
Q. An airplane can fly 470 miles with the wind in the same amount of time as it can fly 340 miles against the wind. If the wind speed is 26 mph, find the speed of the plane in still air.