Problem

A 1.2-m plank of mass 3 kg rests on two joists. Knowing that the coefficient of static fri...

A 1.2-m plank of mass 3 kg rests on two joists. Knowing that the coefficient of static friction between the plank and the joists is 0.30, determine the magnitude of the horizontal force required to move the plank when (a) a = 750 mm, (b) a = 900 mm.

Fig. P4.109

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Solutions For Problems in Chapter 4

109RP
110RP

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