While digging a small hole prior to planting a tree, a homeowner encounters rocks. If he exerts a horizontal 257-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 14-kg prybar. 1730 mm 180 mm Answers: (a) Including weight, Fc- i (a) Excluding weight, Fc= i 22% B A 257 N N N

While digging a small hole prior to planting a tree, a homeowner encounters rocks. If he exerts a horizontal 257-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 14-kg prybar. 1730 mm 180 mm Answers: (a) Including weight, Fc- i (a) Excluding weight, Fc= i 22% B A 257 N N N

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.50P: The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the...

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