A high-speed lifting mechanism supports a 840-kg object with a steel cable that is 31.0 m long and 4.00 cm2 in cross-sectional area. (a) Determine the elongation of the cable. mm (b) By what additional amount does the cable increase in length if the object is accelerated upwards at a rate of 2.7 m/s2? mm
A high-speed lifting mechanism supports a 840-kg object with a steel cable that is 31.0 m long and 4.00 cm2 in cross-sectional area. (a) Determine the elongation of the cable. mm (b) By what additional amount does the cable increase in length if the object is accelerated upwards at a rate of 2.7 m/s2? mm
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter9: Fluids And Solids
Section: Chapter Questions
Problem 73P: A high-speed lifting mechanism supports an 800.-kg object with a steel cable that is 25.0 m long and...
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A high-speed lifting mechanism supports a 840-kg object with a steel cable that is 31.0 m long and 4.00 cm2 in cross-sectional area.
(a) Determine the elongation of the cable.
mm
(b) By what additional amount does the cable increase in length if the object is accelerated upwards at a rate of 2.7 m/s2?
mm
(c) What is the greatest mass that can be accelerated upward at 2.7 m/s2 if the stress in the cable is not to exceed the elastic limit of the cable, which is 2.2 ✕ 108 Pa?
kg
mm
(b) By what additional amount does the cable increase in length if the object is accelerated upwards at a rate of 2.7 m/s2?
mm
(c) What is the greatest mass that can be accelerated upward at 2.7 m/s2 if the stress in the cable is not to exceed the elastic limit of the cable, which is 2.2 ✕ 108 Pa?
kg
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