Projectile motion of a volleyball

[majormuss]

Homework Statement

A volleyball hit into the air has an initial speed of 10. meters per second. Which vector best represents the
angle above the horizontal that the ball should be hit to remain in the air for the greatest amount of time?
1)90 degree above horizontal 2) 60 above horizontal 3) 45 degree above horizontal 4) 30 degree above horizontal

Homework Equations

The Attempt at a Solution

i chose '3'... which is it? and why?

 

[Matterwave]

Be careful what the question asks. The question is which one will allow the ball to remain in the air the longest, not travel the farthest distance.

Use your intuition. For problems like this, that's all you need. If I throw a ball, either horizontal, at an angle, or straight up, which one will remain in the air the longest?