A projectile is launched at an angle of 30 to the horizontal from 65 ft above the ground at an initial speed of 250 ft/sec' Assume the x-axis is horizontal. the positive yaxis is vertical (opposite g), the ground is horizontal. and only the gravitational force acts on the object. Answer parts a through d. a. Find the velocity and position vectors for t2 0. The velocity vector is v(t) = (D'Eb