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**Direction of acceleration due to gravity vectors**

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**Acceleration due to gravity is a vector quantity.**

* Acceleration due to gravity is a vector quantity.

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**Vectors can be represented by an arrow to show magnitude and direction**

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**On your whiteboards, draw the direction of acceleration for the following objects.**

The dashed line represents its path. * not drawn to scale

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**#1. A pebble dropped from a bridge**

* Answer

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**#1. A pebble dropped from a bridge**

* The vector is oriented down.

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**#2. A baseball tossed up in the air, halfway up the path**

* Answer

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**#2. A baseball tossed up in the air, halfway up the path**

* The vector is oriented down.

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**#3. A baseball tossed up in the air, at the top**

* Answer

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**#3. A baseball tossed up in the air, at the top**

* The vector is oriented down.

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**#4. A baseball tossed up in the air, right before it strikes the ground**

* Answer

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**The vector is oriented down.**

#4. A baseball tossed up in the air, right before it strikes the ground * The vector is oriented down.

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**#5. A football is thrown at a 450 angle, at the top of its path**

* Answer

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**#5. A football is thrown at a 450 angle, at the top of its path**

* The vector is oriented down.

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**#6. A cannonball rolling off a table**

* Answer

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**#6. A cannonball rolling off a table**

* The vector is oriented down.

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What can you summarize about the direction of the vector representing acceleration of all these objects? What are other examples?

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**The rock pebble football and all have different masses**

The rock pebble football and all have different masses. How does this affect the magnitude of the acceleration vectors? On Earth, what would its magnitude be?

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