A box is put on frictional surface at rest, if only a 150 N is applied, the box will cover X distance in 5 s, and if only a 250 N is applied, the box will cover 3X distance in 5s. Compute the frictional force.
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Q: box
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A: Given Mass m = 20 kg Coefficient of friction μs = 0.3 gravitational acceleration g = 9.8 m/s2
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