Question 1 a) Figure Q1a shows a bracket that can roll and move horizontally along a beam. A 1600 N force at 15° relative to the horizontal axis acts at A. Determine the force P at 25° relative to vertical axis necessary to keep the bracket static; (i) (ii) Calculate the downward resultant force acting vertically at A. Assume coplanar forces.
Question 1 a) Figure Q1a shows a bracket that can roll and move horizontally along a beam. A 1600 N force at 15° relative to the horizontal axis acts at A. Determine the force P at 25° relative to vertical axis necessary to keep the bracket static; (i) (ii) Calculate the downward resultant force acting vertically at A. Assume coplanar forces.
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter6: Beams And Cables
Section: Chapter Questions
Problem 6.4P: Find the internal force systems acting on sections 1 and 2.
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Transcribed Image Text:Question 1
a) Figure Q1a shows a bracket that can roll and move horizontally along a beam. A
1600 N force at 15° relative to the horizontal axis acts at A.
Determine the force P at 25° relative to vertical axis necessary to keep the
bracket static;
(i)
(ii)
Calculate the downward resultant force acting vertically at A.
Assume coplanar forces.
150
1600 N
250 P
Figure Q1a
b) If a pipe with an inner diameter of 36 mm is subjected to an axial load of
5.20 x 105 N and the maximum allowable stress in the pipe is 7.5 x 10º N/m²,
calculate the minimum wall thickness required for the pipe. Give your answer in
millimetres (mm) to 2 decimal places.
c) A wire with a Young's Modulus, E, of 8.5 x 106 N/m² and an original length of 1.5 m
is under tension. If the wire length extension is 2.5 mm, calculate the stress in the
wire. Give your answer in N/m² to 2 decimal places.
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