Consider the position function for free$-$falling objects.

$s(t)=-16t^2+v_{0}t+s_0$

A ball is thrown straight down from the top of a $454-$foot bullding with an initial velocity of $-29$ fe

$s(t)=$

Find $s^{\text{'}}(t).$

$s^{\text{'}}(t)=$

Give the corresponding velocity function $v(t).$

$v(t)=$

$$

What is its velocity after $4$ seconds?

$v(4)=,vvf\frac{t}{s}$

How many seconds does it take the ball to fall $122$ feet?

$t=$

$5$

What is its velocity after falling $122$ feet?

$v=$

$f\frac{t}{s}$

$3$

$63F$

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