18-38. The spool has a mass of 50 kg and a radius ofgyration of ko = 0.280 m. If the 20-kg block A is releasedfrom rest, determine the distance the block must fall inorder for the spool to have an angular velocity w = 5 rad/s.Also, what is the tension in the cord while the block is inmotion? Neglect the mass of the cord.đ3 m0.2 m

Given Spool mass = 50 kg Radius of gyration =0.28m mass of block = 20 kg w= 5 rad/s Block A is…

Answered: 18-38. The spool has a mass of 50 kg…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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7. A solid shaft of mild steel 200 mm in diameter is to be replaced by hollow shaft of alloy steel for which the allowable shear stress is 22% greater. If the power to be transmitted is to be increased by 20% and the speed of rotation increased by 6%, determine the maximum internal diameter of the hollow shaft. The external diameter of the hollow shaft is to be 200mm. a.145 mm b. 178 mm c. 104 mm d. 183 mm
The single-threaded screw of the floor jack has a pitch of 15mm and a mean radius of 52.5 mm. The angle of static friction is 8.5.. (a) Determine the couple C that must be applied to the screw to start lifting a weight of 4000 N. (b) What is the couple required to start lowering the weight? 4000 N O (a) 42.2 N-m, (b) 22.7 N-m O (a) 42.5 N-m, (b) 22.9 N-m O (a) 41.5 N-m, (b) 21.9 N-m O (a) 41.2 N-m, (b) 21.7 N-m
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Question Bank - Friction The 40-N spool is suspended from the hanger GA and rests against a vertical wall. The center of gravity of the spool is at G and the weight of the hanger is negligible. The wire wound around the hub of the spool is extracted by pulling its end with the force P. If the coefficient of static friction between the spool and the wall is 0.25, determine the smallest P that will extract the 130 270 mm 192 mm wire.
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