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A projectile is launched from the top of a 20−m tall cliff towards another cliff that is 40−m tall and 100−m away. If the projectile is launched at an angle of 50∘, at what speed must it be launched to just barely reach the other cliff? (15 pts)

A projectile is launched from the top of a 20−m tall cliff towards another cliff that is 40−m tall and 100−m away. If the projectile is launched at an angle of 50∘, at what speed must it be launched to just barely reach the other cliff? (15 pts)

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(25 pts) A projectile is launched from the top of a 20 − m tall cliff towards another cliff that is 40 − m tall and 100 − m away. If the projectile is launched at an angle of 50 ∘ , at what speed must it be launched to just barely reach the other cliff? (15pts)

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