英语翻译(a) an archer on ground that has a constant upward slope

英语翻译
(a) an archer on ground that has a constant upward slope of 30 degree aims at a target 60 m farther up the incline.The arrow in the bow and the bull's eye at the center of the target are each 1.50m above the ground.The initial velocity of the arrow just after it leaves the bow has magnitude 32m/s.At what angle above the horizontal should the archer aim to hit the bull's eye?You might have to solve the equation for the angle by iteration-that is.by trial and error.How does the angle compare to that required when the ground is level,with 0 slope?(b) Repeat the problem for ground that has a constant downward slope of 30 degree.