If $x\left(t\right)=5t^3-4t+2$ meters, what is the instantaneous velocity at $t=2$ $\text{s}$?

• A. $58$ $\text{m/s}$
• B. $56$ $\text{m/s}$
• C. $36$ $\text{m/s}$
• D. $26$ $\text{m/s}$

Answer: (B)