A hunter in the plains of Africa is equipped with a bow and arrow. The maximum range of the bow is 100 m. If a Lion charges straight towards him at 30 km/h and the hunter aims his bow at 20 degrees relative to the horizontal, find:
(a) time of flight of the arrow
(b) arrow velocity
(c) how far away should the lion be when the hunter releases the arrow
(d) the radius of curvature of the arrow 1.5 seconds after the launch.
The solution solves the dynamics projectile problem.