Some additional info for you OP. Others have mentioned the magnus effect. We have utilized this effect in the past, before we had the ability to target individual structures with accuracy.
Skip bombs aka dam busters were cylindrical bombs utilized during ww2. They would spin up the bombs before releasing them over water, well before thier target. The magnus effect would cause enough momentum to be transferred from downwards motion to forwards motion that the bombs would not detonate on impact with the water. Instead they would skip across the water like a stone, only detonating once they struck a vertical object. (Hopefully the dam)
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