If V be the velocity of approach at an angle θ, then velocity along the perpendicular direction will be Vsinθ. The image will also approach at the same speed, hence the relative speed of approach will be 2Vsinθ
If V be the velocity of approach at an angle θ, then velocity along the perpendicular direction will be Vsinθ. The image will also approach at the same speed, hence the relative speed of approach will be 2Vsinθ
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