Solve the Problem $$70 ^ { \circ }$$ With the Horizontal

Multiple Choice

Solve the problem.
-A projectile is fired with an initial velocity of 300 feet per second at an angle of $$70 ^ { \circ }$$ with the horizontal. In how many seconds will the projectile reach its maximum altitude? (Round your
Answer to the nearest tenth of a second.)

A) 5.4 sec
B) 13.6 sec
C) 16.9 sec
D) 8.8 sec