- #1

quicksilver123

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## Homework Statement

A ball is thrown upwards. Its velocity at 3/5 its max height is 16.0m/s

What is its initial velocity?

What is its max height?

## Homework Equations

vf^2 = vi^2 -2g(yf-yi)

define up as positive

## The Attempt at a Solution

I ran through numerous attempts on paper but can't seem to find a proper answer. The closest I got was an answer that spit out a negative height... help? Somewhat urgent as I need to bring this question in tomorrow for homework.

Thank you![/B]