To Determine the Height of a Flagpole, Abby Throws a Ball

Multiple Choice

To determine the height of a flagpole, Abby throws a ball straight up and times it. She sees that the ball goes by the top of the pole after 0.50 s and then reaches the top of the pole again after a total
Elapsed time of 4.1 s. How high is the pole above the point where the ball was launched? Neglect
Air resistance.

A) 16 m
B) 10 m
C) 13 m
D) 18 m
E) 26 m