Extra Credit

Due: $12-2-24$

The following problem is worth $5$ bonus points on an exam.

A baseball is launched vertically upward with an initial velocity of $100f\frac{t}{s}$ from the top of an $85-$foot$-$tall building. The position of the baseball relative to the ground after $t$ seconds is given by

$s(t)=-16t^2+100t+85$

$($a$)$ Find the velocity of the baseball when $t=4.$

$($b$)$ Determine when the baseball reaches its maximum height.

$($c$)$ What is the baseball's maximum height?

$($d$)$ Find the acceleration of the baseball when $t=1.$

$($e$)$ How fast is the baseball moving when it hits the ground?

Search

:$\text{'}$ :$$:

F$6$

F$7$

F$8$

F$9$

home

${?}^{{?}^{?}}$

$6$

prtsc

FIO

&

$7$

$8$