Projectile Problem: Find Theta | d=30, v=22, g=9.8, y0=2

[rajesh.msen]

Homework Statement

Hi to all guys i am not good in physics and trigonometric I tried to do a projectile system.My launch point is higher than target point.I know the velocity v, target_distance d, gravity g,Launch_height_y y0.I added a image that shows the equation.I tried my own but not solved the equation.Please some one help me

d = 30,v = 22 , g = 9.8 ,y0 = 2

I wants to find the theta(angle)

Homework Equations

The Attempt at a Solution

 

[aim1732]

Not sure how you got the equation but ut would be best to analyse along the independent x- and y-axes.One is accelerated and other is simple non-accelerated one.

 

[rajesh.msen]

Hey i got this from this link

http://en.wikipedia.org/wiki/Range_of_a_projectile#Uneven_Ground

 

[aim1732]

Of course it is right. What I meant was analysis along x- and y-axes separately is much simpler(that's how they got the formula).