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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 14kg 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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This note was uploaded on 02/17/2012 for the course CEE 270 taught by Professor Chang during the Spring '10 term at UMass (Amherst).
 Spring '10
 Chang

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