515784
Description
Flashcards by declanlarkins, updated more than 1 year ago
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Created by declanlarkins
over 11 years ago
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| Question | Answer |
| The centre of mass of a triangle with vertices at (x\(_1\), y\(_1\)), (x\(_2\), y\(_2\)) and (x\(_3\), y\(_3\)) | (\(\frac{x_1+x_2+x_3}{3}\) , \(\frac{y_1+y_2+y_3}{3}\)) |
| The centre of mass of a triangle lies ... of the way along a median? | \(\frac{2}{3}\) |
| In right-angled triangles the centre of mass is ... of the way from the right angle in both directions? | \(\frac{1}{3}\) |
| The centre of mass is... | The point that the weight of an object can be thought of as acting at. |
| The centre of mass of an object will lie on a line of ... of a shape | Symmetry |
| To work out the centre of mass of composite bodies... | 1) Find the centre of mass of each part 2) Take moments around a point |
| A shape will topple if... | The centre of mass is no longer above the base of the bottom edge |
| If a lamina is hung freely from a pivot the centre of mass will be... | Directly below the pivot |
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