Question 26 of 46 While digging a small hole prior to planting a tree, a homeowner encounters rocks. If he exerts a horizontal 209-N force on the prybar as shown, what is the horizontal force exerted on rock C? Note that a small ledge on rock C supports a vertical force reaction there. Neglect friction at B. Complete solutions (a) including and (b) excluding the weight of the 17-kg prybar. 209 N 1770 mm 20 230 mm Answers: (a) Including weight, Fc N. (a) Excluding weight, Fc i

A 1,400-N uniform boom at o 63.5° to the horizontal is supported by a cable at an angle 0 = 26.5° to the horizontal as shown in the figure below. The boom is pivoted at the || bottom, and an object of weight w = 2,050 N hangs from its top. w Pivot (a) Find the tension in the support cable. 1.41 Your response differs from the correct answer by more than 10%. Double check your calculations. kN (b) Find the components of the reaction force exerted by the pivot on the boom. (Assume the positive x-direction is to the right and the positive y-direction is upward. Include the sign of the value in your answer.) 1.26 horizontal component Your response differs from the correct answer by more than 10%. Double check your calculations. kN vertical component 2.75 kN

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Referring to the figure, block A and B have masses of 14 kg and 9 kg respectively. A horizental rope connects block B to the wall. If the coefficient of friction between block A and block B is 0.25 and between block A to the floor is 0.33  , determine the force P required to cause the motion of block A to impend, and determine the normal force force acting on block A (NA).