Projectile Motion on an Incline. A baseball is given an initial velocity with
magnitude 0 v at an angle above the surface of an incline, which is in turn inclined at
an angle above the horizontal (a) Calculate the distance, measured along the incline,
from the launch point to where the baseball strikes the incline. Your answer will be in
terms of 0 v , g, , and . (b) What angle gives the maximum range, measured along
the incline? (c) An archer on ground that has a constant upward slope of 30.0º aims at
a target 60.0 m farther up the incline. The arrow in the bow and the bull's-eye at the
center of the target are each 1.50 m above the ground. The initial velocity of the arrow
just after it leaves the bow has magnitude 32.0 m/s. At what angle above the
horizontal should the archer aim to hit the bull's-eye? If there are two such angles,
calculate the smaller of the two. 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? (d) Repeat the above for ground that has a constant
downward slope of 30.0º.