Choreographed Fountains Activity: Independent Work

Imagine you are a fountain designer and you need to know how different speed motors will affect the water’s projected height and time in the air. You have various motor speed options but need to choose the one that most closely meets the client’s height request of 690 feet. Your job is to determine which motor speed is the best choice. In all cases, you will use the projectile formula
y = –16x2 + vx + s, with starting height of 0 (s = 0).

1. Substitute the data provided for speed (v) and starting heights (s) into their proper positions

Question

Choreographed Fountains Activity: Independent Work

Imagine you are a fountain designer and you need to know how different speed motors will affect the water’s projected height and time in the air. You have various motor speed options but need to choose the one that most closely meets the client’s height request of 690 feet. Your job is to determine which motor speed is the best choice. In all cases, you will use the projectile formula
y = –16x2 + vx + s, with starting height of 0 (s = 0).
 
1.	Substitute the data provided for speed (v) and starting heights (s) into their proper positions

anonymous · Answer

Please help im so confused!

nory · Answer

Were you given speed data? I don't see it here.
But you can substitute s = 0 into the equation, because the starting height equals 0. y = -16x2 +vx +0

anonymous · Answer

o yeah srry!

anonymous · Answer

Motor A Speed is 190 per sec
Motor B Speed is 210 per sec
Motor C Speed is 230 per sec

nory · Answer

Well, v seems to be speed, so plug those into the equation for v.
y = -16x2 + 190x +0
And now you can do the rest.

anonymous · Answer

Thank u!xd