# An object travels North at #1 m/s# for #3 s# and then travels South at #2 m/s# for #4 s#. What are the object's average speed and velocity?

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Average speed: ( \frac{Total:distance}{Total:time} = \frac{3:m + 4:m}{3:s + 4:s} = \frac{7:m}{7:s} = 1:m/s )

Average velocity: ( \frac{Displacement}{Total:time} = \frac{(-3:m) + (4:m)}{3:s + 4:s} = \frac{1:m}{7:s} ) North

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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