The desk lamp shown consists of two arms, each with a length of 500.0 mm and a weight of 2.94 N. Friction at joint A holds the lamp in place. The bulb, fixture and light shade have a weight of 9 N. a) If the angle is 0 boxes to guide your solution development) 16°,what is the moment at A which friction must resist? (Use the following 101.6 9N Dimensions in mm Draw free body diagram, mentioning all reaction forces acting on it and locations. b) Calculate all the resultant forces and moments at point A. c) Determine the angle of the arm which will produce zero moment at A.

The desk lamp shown consists of two arms, each with a length of 500.0 mm and a weight of 2.94 N. Friction at joint A holds the lamp in place. The bulb, fixture and light shade have a weight of 9 N. a) If the angle is 0 boxes to guide your solution development) 16°,what is the moment at A which friction must resist? (Use the following 101.6 9N Dimensions in mm Draw free body diagram, mentioning all reaction forces acting on it and locations. b) Calculate all the resultant forces and moments at point A. c) Determine the angle of the arm which will produce zero moment at A.

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter5: Three-dimensional Equilibrium

Section: Chapter Questions

Problem 5.26P: The figure shows the FBD of a portion of the space truss shown in Fig. P5.25. Use this FBD to find...

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Question

The desk lamp shown consists of two arms, each with a length of 500.0 mm and a weight of 2.94 N.
Friction at joint A holds the lamp in place. The bulb, fixture and light shade have a weight of 9 N.
a) If the angle is 0
boxes to guide your solution development)
16°,what is the moment at A which friction must resist? (Use the following
101.6
9N
Dimensions
in mm
Draw free body diagram, mentioning all reaction forces acting on it and locations.
b) Calculate all the resultant forces and moments at point A.
c) Determine the angle of the arm which will produce zero moment at A.

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