Q.3. A winch at D is used to raise a 3000 lb load. The radii of winch D and pulley A are each 2ft. Assuming friction is negligible between the cable and the pulley, determine a. The torque (Mp) required at D to raise the load at a constant velocity b. Forces in members BC, EF, FG, and DG.

Q.3. A winch at D is used to raise a 3000 lb load. The radii of winch D and pulley A are each 2ft. Assuming friction is negligible between the cable and the pulley, determine a. The torque (Mp) required at D to raise the load at a constant velocity b. Forces in members BC, EF, FG, and DG.

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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Question

A winch at D is used to raise a 3000 Ilb load. The radii of winch D and pulley A are each
2ft. Assuming friction is negligible between the cable and the pulley, determine
a. The torque (Mp) required at D to raise the load at a constant velocity
b. Forces in members BC, EF, FG, and DG.
Q.3.
3'
3'
6'
T
B
C
D.
6'
E
G
F
1000 lb
650 lb
W
8'
H

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