# Objects A and B are at the origin. If object A moves to #(-7 ,2 )# and object B moves to #(-5 ,-6 )# over #2 s#, what is the relative velocity of object B from the perspective of object A?

The relative velocity is

The time is

The absolute velocity of

The absolute velocity of

The relative velocity of

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To find the relative velocity of object B from the perspective of object A, subtract the velocity of object A from the velocity of object B.

The velocity of object A is the displacement of object A divided by the time taken: Velocity of A = ((-7 - 0), (2 - 0)) / 2 = (-7/2, 1).

The velocity of object B is the displacement of object B divided by the time taken: Velocity of B = ((-5 - 0), (-6 - 0)) / 2 = (-5/2, -3).

Relative velocity of B from the perspective of A = Velocity of B - Velocity of A = ((-5/2) - (-7/2), (-3) - 1) = (1/2, -4).

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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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