Solving Projectile Problem: Initial Speed 100m/s, Object 5m Away 2m High

[Mazero]

Im given the initial speed (100m/s) of an object launched at an unkown angle, it needs to just barely go over an object 5m away 2m high.

Ive made several attempts at this, all of which ending up in the trash
my most recent try is

y=(Vy + (1/2)(-9.8)(t^2)
t = 5/(Vx)

Then used Vx^2 = 100 - Vy^2
and subsituted it all in, and i come out with a big mess to solve, so I've assumed this is not the correct (or best) way to do this

Sorry for not going into more detail, but you should be able to get the idea

 

[Mazero]

BTW I am trying to find the angle...and the 100m/s is the Hypot. componet of the velocity

 

[Pyrrhus]

try putting Y = f(x), so you can plug your X, Y and Vo values, and solve for theta.