Dr$.$ Beck is walking to class at $1$ m$/$s $($absolute velocity$)$ into a headwind that is blowing at $2$ m$/$s$.$ This headwind applies a $25$ N drag force on Dr$.$ Beck.

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As Dr$.$ Beck continues to walk by the library at $1$ m$/$s$,$ the building blocks the headwind $($new headwind $=0$ m$/$s$).$

What is the drag force due to air resistance on Dr$.$ Beck as he walks by the library with no wind?

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Group of answer choices

$25$ N

$2\mathrm{.}8$ N

$0$ N

$6\mathrm{.}3$ N

None of the above