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*instantaneous*velocity, but I'm wondering if it's possible to have an negative

*average*velocity.

For example, let's say you start heading north at a constant 10 mph for an hour. The second hour, you drive south (directly toward the starting point) at 10 mph (i.e -10 mph north). For the entire 2nd hour, your instantaneous velocity is -10 mph north, but after the trip, the average comes to 0 mph since you've stopped right where you started.

So does this mean that a negative average velocity is impossible to achieve?