Question #1346

Find the work done by pushing a mass of 700 kg through a distance of 4.5m along a surface if the coefficient of friction is 0.2. Assume the force is applied horizontally.

Expert's answer

The work is
& A = FS = μmg S = 0.2*700 kg*10m/s2 *4.5 m = 6300 J.

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