Raindrops are falling with the velocity 10√2 m/s making an angle of 45° with the vertical. The drops appears to be falling vertically to a man running with constant speed. The velocity of raindrops change such that the raindrops now appears to be falling vertically with √3 times the velocity it appeared earlier to the same person running with same velocity. Find the angle (in degree) between the initial and final velocity vectors of the raindrops with respect to ground.
