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When a ball with a mass of 100 g is thrown from a height of 2 m at a speed of n m/s, it reaches

When a ball with a mass of 100 g is thrown from a height of 2 m at a speed of n m/s, it reaches 3 meters. Gravity is 9.8m/s, acceleration x. What is the value of n? Next, find the value of n, substitute the mass of water into the ratio relationship to find the speed, calculate the speed limited to 3 liters of water, and then calculate the air resistance.

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