A boy reaches out of a window and tosses a ball straight up

Last updated: 7/31/2022

A boy reaches out of a window and tosses a ball straight up with a speed of 10 m/s. The ball is 20 m above the ground as he releases it. Use coservation of energy to find the ball's speed as it passes the window on its way down. Express your answer in meters per second. Uwindow =