7. Raindrops make an angle 0=35 degrees with the vertical when viewed through a moving train window (see Figure). If the speed of the train is v=56 miles/hour, what is the speed of the raindrops in the reference frame of the Earth in which they are assumed to fall vertically? Assume a value of g=10 m/s2 a) 65 miles/hour b) 70 miles/hour c) 75 miles/hour d) 80 miles/hour e) 85 miles/hour