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## Homework Statement

A student throws a stone vertically downward with an initial velocity of 5.0 m/s from the top of a 165 m building. How far does the stone travel during its 4th second of travel?

## Homework Equations

d= vit + 1/2at2

## The Attempt at a Solution

Vi = -5.0 m/s

t = 4.0 s

a = -9.81 m/s2

d = ?

I tried it in the kinematics equation d= vit + 1/2at2 and the answer is wrong.