$\mathrm{s}$ Is the Distance (In $\mathrm{ft}$ ) Traveled in Time $\mathrm{t}$ (In S) by a Particle

Multiple Choice

$\mathrm{s}$ is the distance (in $\mathrm{ft}$ ) traveled in time $\mathrm{t}$ (in s) by a particle. Find the velocity and acceleration at the given time.
- $s=\frac{1}{t+2}, t=5$

A) $v=-\frac{2}{343} \mathrm{ft} / \mathrm{s}, a=\frac{1}{49} \mathrm{ft} / \mathrm{s}^{2}$
B) $\mathrm{v}=\frac{2}{343} \mathrm{ft} / \mathrm{s}, \mathrm{a}=-\frac{1}{49} \mathrm{ft} / \mathrm{s}^{2}$
C) $v=\frac{1}{49} \mathrm{ft} / \mathrm{s}, \mathrm{a}=-\frac{2}{343} \mathrm{ft} / \mathrm{s}^{2}$
D) $v=-\frac{1}{49} \mathrm{ft} / \mathrm{s}, a=\frac{2}{343} \mathrm{ft} / \mathrm{s}^{2}$