Term
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Definition
| average position of weight |
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Term
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Definition
| average position of matter |
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Term
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Definition
| when any displacement raises the center of gravity, CG |
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Term
| Why is a tight rope walker very stable with a long pole with weights |
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Definition
| the center of gravity can be pulled below the wire. It takes a lot of Energy to pull the CG above the wire so the tightrope walker is extremely stable) |
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Term
| To resist being toppled, why does a wrestler stand with his feet apart |
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Definition
| wide apart feet increase the support base |
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Term
| For an irregular shaped projectile. Its motion is made up of two parts. What are they? |
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Definition
| Projectile motion of its center of gravity, rotational motion around the center of gravity. Rotation around earth and revolution around the CG. |
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Term
| State the rule for toppling. |
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Definition
| If the CG of an object is above the area of support, the object will remain upright. If the CG extends outside the area of support the object will topple |
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Term
| Tell three ways to carry a pile of books easier than with one hand at your side. |
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Definition
| 1. Hold them close to you in front or in a backpack. 2. Divide them and carry them with two arms. 3. Carry them on your head. |
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