2/33 A prybar is used to remove a nail as shown. De-termine the moment of the 240-N force about the pointO of contact between the prybar and the small supportblock.P-30 N16 m240 N16 m15350 mmPROBLEM 2/3s2/36 A man exerts a force F on the handle of the stationarywheelbarrow at A. The weight of the wheelbarrow alongwith its load of dirt is 185 Ib with center of gravity at G. Forthe configuration shown, what force F must the man applyat A to make the net moment about the tire contact point Bequal to zero?6530 mmPROBLEM 2/33Representative Problems2/34 An overhead view of a door is shown. If the com-20pressive force F acting in the coupler arm of the hy-draulic door closer is 17 lb with the orientation shown,determine the moment of this force about the hingeaxin O.20PROBLEM 2/362/37 A 150-N pull T in applied to a cord, which is woundsecurely around the inner hub of the drum. Determine themoment of T about the drum center C. At what angle eshould T be applied so that the moment about the contactpoint Pis zero?T= 150 NF-17 Ib125 mmyPROBLEM 2/34c+200 mm2/35 The 30-N force P is applied perpendicular to the por-tion BC of the bent bar. Determine the moments of P aboutpoint B and about point A.PROBLEM 2/37

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2/33 A prybar is used to remove a nail as ahown. De- termine the moment of the 240-N force about the point O of contact between the prybar and the small support block. 240 N 15 350 mm 65 30 mm PROBLEM 2/33

2/33 A prybar is used to remove a nail as ahown. De- termine the moment of the 240-N force about the point O of contact between the prybar and the small support block. 240 N 15 350 mm 65 30 mm PROBLEM 2/33

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

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ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.113P: The pins at the end of the retaining-ring spreader fit into holes in a retaining ring. When the...

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Concept explainers

Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

Question

2/33 A prybar is used to remove a nail as shown. De-
termine the moment of the 240-N force about the point
O of contact between the prybar and the small support
block.
P-30 N
16 m
240 N
16 m
15
350 mm
PROBLEM 2/3s
2/36 A man exerts a force F on the handle of the stationary
wheelbarrow at A. The weight of the wheelbarrow along
with its load of dirt is 185 Ib with center of gravity at G. For
the configuration shown, what force F must the man apply
at A to make the net moment about the tire contact point B
equal to zero?
65
30 mm
PROBLEM 2/33
Representative Problems
2/34 An overhead view of a door is shown. If the com-
20
pressive force F acting in the coupler arm of the hy-
draulic door closer is 17 lb with the orientation shown,
determine the moment of this force about the hinge
axin O.
20
PROBLEM 2/36
2/37 A 150-N pull T in applied to a cord, which is wound
securely around the inner hub of the drum. Determine the
moment of T about the drum center C. At what angle e
should T be applied so that the moment about the contact
point Pis zero?
T= 150 N
F-17 Ib
125 mmy
PROBLEM 2/34
c+
200 mm
2/35 The 30-N force P is applied perpendicular to the por-
tion BC of the bent bar. Determine the moments of P about
point B and about point A.
PROBLEM 2/37

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