A garden hose is held at an angle of 50°. Neglecting air resistance, the water will travel exactly the same horizontal distance before returning to the same level if the hose is held at an angle of
A)40°.
B)45°.
C)60°.
For maximum range, the hose should be held at
D)40°
E)45°
F)55°
G)60°

Question

Quizplus · Accepted Answer

For the water to travel the same horizontal distance before returning to the same level, it should be launched at an angle equal to its complement (90°-50°=40°). Therefore, the correct options for the first question are A and C. 
For maximum range, the optimal angle is 45°, as it provides the largest range in a projectile motion. Therefore, the correct option for the second question is E.

A Garden Hose Is Held at an Angle of 50°