How Long Does It Take a Skier to Descend a 22° Incline?

[dougr81]

Hi,
I am having some trouble with this simple kinematics problem. Here it is:

A skier is gliding along at 2.91 m/s on horizontal, frictionless snow. He suddenly starts down a 22° incline. His speed at the bottom is 12.18 m/s.

The first question asks for the length of the incline, which I got 19.0610 m.

The second question asks how long it takes to reach the bottom. Can anyone help me set this up?

Thanks,
Doug

 

[Shooting Star]

Show at least a little of what you've done so far, if you expect to get help.