Showing 141 to 150 of 1245 Questions
  • 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.

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    175
  • Two children are standing on a diving board of mass 65 kg. Knowing that the masses of the children at C and D are 28 kg and 40 kg, respectively, determine (a) The reaction at A, (b) The reaction at B.

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    113
  • Two crates, each weighing 250 lb, are placed as shown in the bed of a 3000-lb pickup truck. Determine the reactions at each of the two(a) Rear wheels A, (b) Front wheels B.

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    148
  • Solve Problem 4.3 assuming that crate D is removed and that the position of crate C is unchanged. P4.3 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

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    125
  • A T-shaped bracket supports the four loads shown. Determine the reactions at A and B if (a) 100 a = mm, (b) a = 70 mm.

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    939
  • For the bracket and loading of Problem 4.5, determine the smallest distance a if the bracket is not to move. P4.5 A T-shaped bracket supports the four loads shown. Determine the reactions at A and B if (a) 100 a = mm, (b) a = 70 mm.

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    315
  • 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 α = 35o, (b) The corresponding reaction at each of the two wheels.

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    186
  • Solve Problem 4.7 when α = 40o. P4.7 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 α = 35o, (b) The corresponding reaction at each of the two wheels.

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    115
  • Four 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.

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    121
  • A control rod is attached to a crank at A and cords are attached at B and C. For the given force in the rod, determine the range of values of the tension in the cord at C knowing that the cords must remain taut and that the maximum allowed tension in a cord is 180 N.

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    145