A golfer hits a ball on a level fairway at an angle of 55° relative to the horizontal, and it lands on the green. Another golfer hits a ball with the same speed but at another angle, and it lands on the green by the other ball. What was the launch angle for the second golfer?
A) 35°
B) 25°
C) 40°
D) 45°
E) 15°

Question

Quizplus · Accepted Answer

The launch angles that result in the same range for projectiles with the same initial speed are complementary angles. Since the first angle is 55°, the complementary angle is 35° (90° - 55° = 35°).

A Golfer Hits a Ball on a Level Fairway at an Angle