Suppose that an object moves along an [math]-axis so that its location is given by [math] at time [math]. (Here [math] is in meters and [math] is in seconds.)

(a) Find the average velocity of the object in meters per second over the time interval [math] to [math] seconds.

Average velocity = m/s.

(b) Find the instantaneous velocity of the object in meters per second at [math] seconds.

Instantaneous velocity = m/s.