# A boat is trying to cross a river that is flowing at 2 m/s. The boat can travel at 4m/s. What is the resultant velocity of the boat?

The resultant velocity is

So, the resultant of the velocities is

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The resultant velocity of the boat is 4.47 m/s at an angle of approximately 26.6 degrees upstream from the boat's original direction.

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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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