A Ball Is Thrown Upward from an 80-Ft Tower with an Initial

Multiple Choice

A ball is thrown upward from an 80-ft tower with an initial vertical speed of 40 ft/s. If air resistance is ignored, the ball's speed when it reaches the ground will be

A) 67 ft/s.
B) 130 ft/s.
C) 120 ft/s.
D) 49 ft/s.
E) 82 ft/s.