Part $2$ ol $2$

$($x$)$ Points: $0$ or $1$

Suppose the position of an object moving in a straight line is given by $s(t)=5t^{2}4t3.$ Find the instantaneous velocity when $t=2.$

What expression can be used to find the instantaneous velocity at the given time?

$($v$)\underset{h0}{lim}\frac{s(2h)-s(2)}{h}$

B$.\frac{s(2)s(0)}{20}$

c$.\frac{s(2)-s(0)}{2-0}$

D$.\underset{ba}{lim}\frac{s(2)-s(a)}{2-a}$

The instantaneous velocity at $t=2$ is $31.$

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$($Simplify your answer.$)$