Katie and her best friend Liam play tennis every Saturday morning. When Katie serves the ball to Liam, it travels 9.5 meters south in 2.1 seconds. What is the velocity of the tennis ball? If the tennis ball travels at constant speed, what is its velocity when Liam returns Katie’s serve?
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Katie and her best friend Liam play tennis every Saturday morning. When Katie serves the ball to Lia...
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