# What is the relative velocity equation?

If an object A moves with velocity

To keep things simple, let's use linear motion as an example and assume that what we observe in one dimension also applies in two and three dimensions (which is a happy result of using vector notation).

Then, naturally, the velocity of A as perceived by a passenger in car B is

It is very easy to extend what we have seen here to three dimensions; all that needs to change are vector notations. All other details stay the same.

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The relative velocity equation is given by:

[ \text{Relative Velocity} = \text{Velocity of Object A} - \text{Velocity of Object B} ]

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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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- How do you normalize # (3i – 4j + 4k) #?

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