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Help me out of this problem 10, please, thank you!

0l) m, where t is measured
lt Qtbereration of the particle at the instant when its velocity is zero?
1O. An object is thrown vertically and has an upward velocity of 18 m/s ywhen it reaches one fourth ofits
maximum height above its launch point. What is the initial (launch) speedof the object?
11/A stone is thrown from the top of a building with an initial yelociti nf 10
nitial velocity of
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Transcribed Image Text:0l) m, where t is measured lt Qtbereration of the particle at the instant when its velocity is zero? 1O. An object is thrown vertically and has an upward velocity of 18 m/s ywhen it reaches one fourth ofits maximum height above its launch point. What is the initial (launch) speedof the object? 11/A stone is thrown from the top of a building with an initial yelociti nf 10 nitial velocity of
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