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

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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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
Transcribed Image Text: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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