Problem $11\mathrm{.}067.$b $-$ Speed into the station

Determine the speed of the train as it arrives at the station. $($Round the final answer to three decimal places.$)$

The speed of the train as it arrives at the station is

$m\frac{i}{h}.$

Problem $11\mathrm{.}067.$c $-$ Final deceleration

Determine the final constant deceleration of the train. $($Round the final answer to three decimal places.$)$

The final constant deceleration of the train is

$f\frac{t}{s^2}.($Include a minus sign if necessary.$)$