Thread: Degrees slope?

An apple falls from an apple tree growing on a 20° slope. The apple hits the ground with an impact velocity of 2.6 m/s straight downward. What is the component of the apple's impact velocity parallel to the surface of the slope.

I don't really understand what they mean by 20 degrees slope, what formula do I use?

tilt the coordinate axes 20 degrees w/r to the horizontal ...

So I just have to 2.6m/s(cos 20)?

Originally Posted by Oldspice1212

So I just have to 2.6m/s(cos 20)?

parallel to the slope would be

perpendicular to the slope is