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.

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