Question

A ball is thrown 125 meters upward and then falls the same distance back to Earth. Neglecting air resistance, its total time in the air is

Answer 1

the ball is in the air for 10 seconds

Step-by-step explanation:

let gravity = 10m/s/s

height = 1/2 acceleration • time^2

125 m = 1/2 • 10 m/s/s • time ^2

125m = 5 m/s/s • time^2

25s = time^2

5 s = time

5 seconds is the time required for half of the flight

time total = 2 • time

time total = 2 • 5s

time total = 10 s