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13 Cards in this Set
- Front
- Back
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What is the formula for the component method of dot product? |
A ○ B = AxBx + AyBy + AzBz |
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What is the formula for projection of A onto B? |
|A|cos(alpha) |
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What is the formula for equation method of dot product? |
A ○ B = |A|x|B|cos (alpha) |
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What is the formula for the magnitude and direction method of cross product? |
|C| = |A|x|B|sin (alpha) |
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Whats the formula for component method of cross product? |
A x B = (AxBy - AyBx) k |
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What is energy? |
The ability to do work |
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What are the units if energy? |
J or Nm It's a scalar |
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What are the forms of energy? |
Potential: due to gravity, due to spring Kinetic: translation |
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What is the law of conservation of energy? |
If no external agent exerts force on a system then the total energy of the system remains constant |
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What is are the units for mechanical work? |
J or Nm Scalar |
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Is work done if force and displacement are done in different directions? I.e. carrying a 10kg suitcae 100m? |
No |
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What is the work energy principle? |
Work = change in Energy |
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What are the units of impulse and is it a vector or scalar? |
Newton seconds Vector |
