# An object travels North at # 8 m/s# for #9 s# and then travels South at # 5 m/s# for # 2 s#. What are the object's average speed and velocity?

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The average speed is the total distance traveled divided by the total time taken. To find the total distance traveled, calculate the distance traveled while moving north and while moving south separately, and then add them together. The average velocity is the total displacement divided by the total time taken. To find the total displacement, subtract the distance traveled south from the distance traveled north, taking into account the direction. Then, divide the total displacement by the total time taken to find the average velocity.

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Average speed: 5.2 m/s Average velocity: 2.8 m/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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