The force of friction can be calculated using the formula: \( f_{friction} = \mu \times N \), where \( \mu = 0.1 \) (coefficient of kinetic friction) and \( N = mg \) (normal force).
Substitute the values: \( f_{friction} = 0.1 \times 1 \times 9.8 = 0.98 \, N \).
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