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momentandreactionforceproblems

# momentandreactionforceproblems - uniform 14-kg wooden plank...

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The boom on a 4300-kg truck is used to unload a pallet of shingles of mass 1600 kg. Determine the reaction at each of the two ( a ) rear wheels B , ( b ) front wheels C. Assume that the Truck is stationary and its weight is concentrated at G. A hand truck is used to move two barrels, each weighing 80 lb. Neglecting the weight of the hand truck, determine ( a ) the vertical force P which should be applied to the handle to maintain equilibrium when o 35 , α = ( b ) the corresponding reaction at each of the two wheels.

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Four boxes are placed on a
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Unformatted text preview: 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. The lever BCD is hinged at C and is attached to a control rod at B . Determine the maximum force P which can be safely applied at D if the maximum allowable value of the reaction at C is 500 N. Determine the tension in each cable and the reaction at D ....
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momentandreactionforceproblems - uniform 14-kg wooden plank...

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