(i) Determine the angle of threaded screw, 0. (ii) Find the angle on static friction, Øs. (iii) Calculate the minimum pulley radius. (iv) Distinguish the work done to lift up load 100 mm vertically.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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(c)
A pull effort of 25.9 N by a boy at the rope end which incircled to a large pulley will
raise up the 100 kg weighing block as shown in Figure Q2 (c). The pulley is welded
together with square threaded jack. Given the thread mean diameter is 50 mm, pitch,
1 = 12.5 mm and coefficient of friction, u = 0.13.
(i) Determine the angle of threaded screw, 0.
(ii) Find the angle on static friction, Øs.
(iii) Calculate the minimum pulley radius.
(iv) Distinguish the work done to lift up load 100 mm vertically.
Transcribed Image Text:(c) A pull effort of 25.9 N by a boy at the rope end which incircled to a large pulley will raise up the 100 kg weighing block as shown in Figure Q2 (c). The pulley is welded together with square threaded jack. Given the thread mean diameter is 50 mm, pitch, 1 = 12.5 mm and coefficient of friction, u = 0.13. (i) Determine the angle of threaded screw, 0. (ii) Find the angle on static friction, Øs. (iii) Calculate the minimum pulley radius. (iv) Distinguish the work done to lift up load 100 mm vertically.
KG
Figure Q2 (c)
Transcribed Image Text:KG Figure Q2 (c)
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