What Angles Should a Fire Hose Nozzle Point to Land Water 2.0m Away?

[Sn0wPr0]

A fire hose held near the ground shoots water at a speed of 7.8 m/s.

At what angles should the nozzle point in order that the water land 2.0 m away


I don't even know where to start. Can anyone set me in the right direction?

 

[Proggle]

Forget about the fact that it's a stream of water and think about normal projectiles.

 

[Sn0wPr0]

i just can't figure out how to find the component vectors, which is where i think i need to start.

 

[FedEx]

A fire hose held near the ground shoots water at a speed of 7.8 m/s.

At what angles should the nozzle point in order that the water land 2.0 m away


I don't even know where to start. Can anyone set me in the right direction?

Do you know the equations for projectile motion?

 

[Sn0wPr0]

yea, i have them in front of me but I'm having trouble applying them right now.

i'm so frustrated right now i just don't know where to start.

 

[Sn0wPr0]

i'm starting to think it has something to do with the range equation. am i going in the right direction?

do i set it equal for sin?

(Vo^2/9.80)sin0=r

 

[shawshank]

You know your speed, and you know your dX (horizontal distance) and you obviously know g. So use the equation with these variables and solve for the angle (theta).