A fighter plane is flying horizontally at an altitude of 1.5 km with speed 720 km/h. At what angle of sight (w.r.t. horizontal) when the target is seen, should the pilot drop the bomb in order to attack the target?

Given:


Height of the plane = h = 1.5km = 1500m


Horizontal velocity of the plane = u = 720km/hr = 200m/s



Let us calculate the horizontal distance between the target and the point of release of the bomb,



Now, formula for angle of sight is given by,




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