Question about vectors, velocity, time and distance?

[brandon d]

An arrow is fired at and angle of 45 degrees with a velocity of 30 m/s above the horizontal off the edge of a 3m high cliff.

A) Resolve the initial velocity into its x and y components.
B) Find how long it takes the arrow to hit the ground below the cliff
C) Find how far from the cliff the arrow hits the ground.

PLease give some hints/formulas or ways to show me how to solve this

 

[Hannisch]

Have you been given any formulas you think might relate to this problem? What theory have you gone through?

 

[brandon d]

We have been doing forulas with stuff like j hat and i hat
Equations with initial and final velocity, time, inital and final displacement and acceleration