Question

i need to find an example of a quadratic equation that i can use in a real world aplication

Answer 1

Do you know of anything that varies with the square of something else?

Answer 2

umm i could see

Answer 3

yea im kinda stumped

Answer 4

Well, what about area (as being the most obvious example).

Answer 5

Since you talk about area in terms of square footage.

Answer 6

H = vt + h -.5at^2.
Where:
H = Height of object above initial position
v = initial velocity
t = elapsed time
h = the initial height of the object above ground
a = 9.8 meters/s squared (acceleration due to gravity).

An object dropped from a building onto the street below would follow that equation.

Answer 7

The area of a square varies with the square of the length of the side.

Answer 8

also

s = ut + 1/2*a*t²

Answer 9

but it's not a quadratic you'd need the quadratic equation for.

Answer 10

yea i guess i could use say, how many square feet it would take to do a room in carpet or tile based on the dimensions of the room?

Answer 11

that's not as good because it's not a quadratic in only 1 variable.

Answer 12

true

Answer 13

harkirat's example is better if you are familiar with physics.

Answer 14

the distance equation is a quadratic equation....

Answer 15

not to good with physics

Answer 16

we also use it to calculate the distance covered by a projectile when it traverses a parabolic path.....
very important application in today's war torn world....

Answer 17

so i could basically use this to come up with an eqution that would compute the time it would take a bullet fired from say a ar-15, based on the amount of fps the the bullet travels and also based on say the weight of the bullet, wind direction and speed and how many yards away the target is?

Answer 18

yes, high accuracy guns/missile firing systems have built in programs which use such equations to calculate automatically the angle etc at which they must be fired to reach a particular target

Answer 19

so what could an example be?

Answer 20

At what angle should a bomb weighing ----- should be fired to reach a target ----miles away??