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Factors Affecting Friction

A person push...

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A person pushes a block of mass 0.25 kg along a horizontal table with a force of magnitude 5N for a dis†an ce of 0.5m. The frictional force between block and table is 1N. The average power of pushing force is

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What is the net force on the block, if I am pushing the block with force, F on a table which is applying a frictional force, f ? [2 MARKS]

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