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Suppose that an object moves along the [math]-axis
so that its location is [math] at time
[math]. (Here [math] is in feet and [math] is in seconds.)
Find the velocity (include units) of the object at each of following times:

(A) Velocity at [math] seconds:

(B) Velocity at [math] seconds:

(C) Velocity at [math] seconds:

You may want to consult the list of abbreviations of
units known to WeBWorK.