A dart is thrown horizontally with an initial speed of 18 m/s toward point P, the bull's-eye on a dart board. It hits at point Q on the rim, vertically below P, 0.19 s later. (a) What is the distance PQ? (b) How far away from the dart board ?
(a). To find PQ we consider only the vertical component of the motion.
The horizontal component of velocity is constant so: