An airplane with a speed of 73.9 m/s is climbing upward at an angle of 71.7 ° with respect to the horizontal. When the plane's altitude is 555 m, the pilot releases a package.
(a) Calculate the distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth.
(b) Relative to the ground, determine the angle of the velocity vector of the package just before impact.