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Problem: A cannon, located 60.0 m from the base of a vertical 25.0 m tall cliff, shoots a 15 kg shell at 43.0 degree above the horizontal toward the cliff.

Part A: What must the minimum muzzle velocity be for the shell to clear the top of the cliff?

I need help to find the minimum muzzle velocity be for the shell to clear the top of the cliff.

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