# physics

posted by
**Dave** on
.

A ball, initially at y = 0, is thrown straight down and takes 1.40 s to move 13.8 m in the - y direction. Calculate the initial velocity of the ball.

posted by
**Dave** on
.

A ball, initially at y = 0, is thrown straight down and takes 1.40 s to move 13.8 m in the - y direction. Calculate the initial velocity of the ball.