Question: It is raining, and there is no wind. When you are sitting in a stationary car, the rain falls straight down relative to the car

It is raining, and there is no wind. When you are sitting in a stationary car, the rain falls straight down relative to the car and the ground. But when you’re driving, the rain appears to hit the windshield at an angle.
(a) As the velocity of the car increases, this angle (1) also increases, (2) remains the same, (3) decreases. Why?
(b) If the raindrops fall straight down at a speed of 10 m/s, but appear to make an angle 25o of to the vertical, what is the speed of the car?

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