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Centre of Gravity The centre of gravity (sometimes called the centre of mass) of an object is?the point through which all the weight can be considered to act The position of the centre of gr...
Edexcel A Level Physics:復習筆記2.15 Moments
Calculating the Moment of a Force A moment is the?turning effect of a force Moments occur when forces cause objects to?rotate?about some pivot The moment of a force is given by Moment (N m) ...
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The Principle of Conservation of Linear Momentum The principle of conservation of momentum states that in a?closed system, the total momentum before an event is equal to the total momentum after th...
