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Asked: 2021-02-12T06:11:50+00:00 In:

A force of 98 N is just required to move a mass of 45 kg on a rough horizontal surface. Find the coefficient of friction and angle of friction?

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    1 Answer

    1. F = 98 N, R = 45 × 9·8 = 441 N
      μ² = F’/R = 0.22
      Angle of friction θ = tan⁻¹ μ = tan⁻¹ 0·22 = 12°24′

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