17784690
Description
Flashcards by David Shipp, updated more than 1 year ago
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Created by David Shipp
about 5 years ago
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| Question | Answer |
| What is the center of mass of a system? | Center of mass simplifies systems of objects to treat them as a single point. It is the weighted average of the position of the objects. |
| How do you estimate the center of mass of 2 unequal mass objects? | The center of mass is always proportionally closer to the heavier object. (2M - - -x- - - - - - M) |
| When the net external force on a system is zero, the velocity of the center of mass ________________ | stays constant (this is a variation of Newton's 2nd law) |
| __________ forces do not affect the velocity of the center of mass of a system, but _____________ forces do. | Internal . . . net external (Newton's 2nd law variation) |
| Objects tend to rotate around their _________ __ ______ when no other pivot point is likely. | Center of Mass |
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