A measure of how much matter an object contains The force on an object due to gravity volume = length x breadth x height = 5 x 5 x 5 = 125 cm 3 Volume.

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Presentation transcript:

A measure of how much matter an object contains The force on an object due to gravity volume = length x breadth x height = 5 x 5 x 5 = 125 cm 3 Volume of material = 125 – 25 = 100 cm 3 Density = mass/volume = 270/100 = 2.7 g/cm 3 Click for solutions

The centre of gravity is the point where all the weight appears to act The block will topple as the vertical line through its centre of gravity falls outside its base Click for solutions

clockwise moment = anticlockwise moment 5 x 5,000 = 2 x F 25,000 = 2F F = 12,500N 2.0 m Click for solutions