Piecewise functions are sometimes useful when the relationship between a dependent and an independent variable cannot be adequately represented by a single equation. For example, the velocity of a rocket might be described by

Develop a function file to compute $v$ as a function of $t.$ Then return $v$ to the main program $($this file$)$ to generate a plot of $v$ versus $t$ for $t=-5$ to $50$ with a step size of $0\mathrm{.}5.$

Please solve using matlab