Halliday, Resnick & Walker — Motion in Two and Three Dimensions: Problem 21

21 A stone is thrown by aiming directly at the center \( P \) of a picture hanging on a wall. The stone leaves from the starting point horizontally with a speed of \( 6.75 \text{ m/s} \) and strikes the target at point \( Q \), which is \( 5.00 \text{ cm} \) below \( P \). Find the horizontal distance between the starting point of the stone and the target.