HW 12 - 4.5 A T—shaped bracket supports the four loads...

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Unformatted text preview: 4.5 A T—shaped bracket supports the four loads shown. Determine the reactions at A and B if (e) e = 100 min, (E) e = 70 mm. 4.9 F our boxes are placed on a uniform 14-kg wooden plank which rests on two sawhorses. Knowing that the masses of boxes B and D are 4.5 kg and 45 kg, respectively, determine the range of values of the mass of box A so that the plank remains in equilibrium when box C is removed. 1.5 rn LB Il'l 4.21 The required tension in cahle AB is Sflfl N. Determine {a} the vertical force P which must be applied to the pedal, (is) the corresponding reaction at C. 4.27 For the frame and leading Shawn, determine the reactions at A and E when {a} a = 30", (I?) a = 453 EN] N 9:] N ...
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