cannon installed at the top of a hill can fire shells in all directions here is an enemy bunker at an angle of elevation and a

Question

cannon installed at the top of a hill can fire shells in all directions here is an enemy bunker at an angle of elevation and a distance d om the cannon All the shells fired explode in air in time T before they each the bunker At what angle to the horizontal should a shell be fired with a speed u to explode closest to the bunker Acceleration due to ravity is g

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