Questions 1

A small 1.35 𝑘𝑔 mass is launched from the top of a cliff at an angle of 15.9° above the horizontal. When the mass reaches the ground 4.33 𝑠𝑒𝑐𝑜𝑛𝑑𝑠 later, its velocity is directed at 34.4° below the horizontal. What is the speed of the mass when it reaches the ground? Ignore air resistance

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