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10 cards from this deck
Point where total weight of system effectively acts
Weighted average position of all masses
M=∑i=1nmiM = \sum_{i=1}^{n} m_iM=∑i=1nmi
xˉ=∑mixi∑mi\bar{x} = \frac{\sum m_i x_i}{\sum m_i}xˉ=∑mi∑mixi
x-coordinate xˉ\bar{x}xˉ
y-coordinate yˉ\bar{y}yˉ
yˉ=∑miyi∑mi\bar{y} = \frac{\sum m_i y_i}{\sum m_i}yˉ=∑mi∑miyi
Suspension point to centre of mass line is vertical
Create couple causing rotation
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