Two shells were fired one after another with the same initial velocity from a point on the ground, but at
different angles with horizontal. Both hit the ground target, 1920 m away. There was a wall of height
115/2 m at some distance from the point of firing. The first shell just grazed the top of the wall, and the
second shell comfortably cleared the wall by a margin of 7/9 times the height of the wall. How far
away is the wall from the point of firing (g = 10m/s²)?
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if the answer is 80 or 1840 I can provide you the solution.
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