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## Homework Statement

A ball thrown straight upward returns to its original level in 3.00 s. A second ball is thrown at an angle of 36.0° above the horizontal. What is the initial speed of the second ball if it also returns to its original level in 3.00 s?

anwer : ___ m/s

## Homework Equations

i need help finding the correct equation which would guide me to a correct answer