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## Homework Statement

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## Homework Equations

## The Attempt at a Solution

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Hey, I did part a and b. Although I need a little help with part c.

I know you're supposed to solve for t^2 but I don't know what value to use for acceleration.

I'd use the quadratic formula to solve for t^2, but I'm just not sure which values to use...

At first I thought the initial velocity would be zero and the acceleration would be zero but then that left me with:

-1/2 * (4.8 m/s^2) = 0 which doesn't lead to the right answer. Could you guys point me in the right direction?