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## Homework Statement

Equation for the time of a free fall with an initial velocity?

## Homework Equations

√ (2 ⋅ h / a )

## The Attempt at a Solution

Is it √ (2 ⋅ h / v

_{i}a )

*Thanks for the help :)*

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- Thread starter julianwitkowski
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Equation for the time of a free fall with an initial velocity?

√ (2 ⋅ h / a )

Is it √ (2 ⋅ h / v

- #2

Andrew Mason

Science Advisor

Homework Helper

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Your guess is not correct. Your first equation is correct if the object is at rest (v_{i}=0). If initial velocity is not 0 you have to factor in a v_{i}t term and work t out from the quadratic equation:

(1/2)gt^{2} + v_{i}t - h = 0

(where h is the distance fallen).

AM

(1/2)gt

(where h is the distance fallen).

AM

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