A car travels due east with a speed of 50.0 km/h. Raindrops are falling at a constant

Question:

A car travels due east with a speed of 50.0 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 60.0° with the vertical. Find the velocity of the rain with respect to
(a) The car and
(b) The Earth.