14.40: A small 1.35-gram mass i
y(b-q0rbs ;6lwf om-5x 9aopws launched from the top of a cliff at an angle of
- lbmwybow-s0 qap965; xor(f$15.9^{\circ}$ above the horizontal. When the mass reaches the ground 4.33 seconds later, its velocity is directed at $34.4^{\circ}$ below the horizontal. What is the speed of the mass when it reaches the ground? (ignore air resistance)