Calculating Rain Velocity in Different Reference Frames for a Traveling Car

[kornkidcrazy]

A car travels due east with a speed of 35.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 55.0° with the vertical. Find the velocity of the rain with respect to the following reference frames.



1. the car : ___m/s
2. the Earth: ___m/s



I don't know how to solve this problem. I am bad at physics and I can't find any formulas to save me. If some could help walk me through it, help me, or point me in the right direction, that'd be great. Thanks.

 

[parabolic]

first need to convert units from km/h to m/s. Then it is all trigonometry. Draw yourself a diagram and label you knowns and unknowns. Post what you come up with.

 

[kornkidcrazy]

Ok, I converted 35km/h to m/s and I got 9.72222223. And I know the angle is 55 degrees. So, if I draw a triangle, I would label the angle between the hypotnues and adjacent 55 right?
I'm not sure what I am really supposed to draw or how I can convert 9.72222223 into the velocities I need.

 

[kornkidcrazy]

Like, what formulas do I use to find the velocity in this problem?