A projectile is launched with an initial velocity of 29.7m/s at an angle of ?0=45.9 degrees above horizontal from level ground. after traveling a horizontal distance d=27.3m, it strikes a high cliff at a height h above the original launch height. the impact angle, ?, may be above or below horizontal, depending upon whether or not the projectile has passed the apex of its flight. at what height above the initial position, in meters, does the projectile strike the cliff.
a) 10 m
b) 20 m
c) 30 m
d) 40 m