Projectile motion question help?

[Yoda]

A car launches itself from a ramp at 30degress with a velocity of 26m/s onto a 3 metre high cliff. At what distance should the cliff be for the car to land successfully?

[lzxnl]

Technically the car would have a speed of 26 m/s, not velocity, as you've only given us a size

Set up your constant acceleration table:
x = ?
ux = 26 cos 30
vx = 26 cos 30
ax = 0
t = ?

y = 3 (because it goes from ground level to a cliff 3 m high)
uy = 26 sin 30 = 13
vy = ?
ay = -10
t = ?

Try and find the missing variables if you can. Then, use Pythag to find the distance from the ramp the cliff should be (sqrt(x^2+y^2))

[Yoda]

Couldn't you just find the time it takes to get to the top of the cliff, and then use v=d/t to find the distance in the horizontal direction.

[lzxnl]

Yeah you'd do that. I just wrote out the entire table to assist with future projectile motion questions.