57 A 230 kg crate hangs from the end of a rope of length L = 12.0 m. You push horizontally on the crate with a varying force F to move it distance d 4.00 m to the side (Fig. 7-44). (a) What is the magnitude of F when the crate is in this final position? During the crate's displacement, what are (b) the total L Figure 7-44 Problem 57. work done on it, (c) the work done by the gravitational force on the
57 A 230 kg crate hangs from the end of a rope of length L = 12.0 m. You push horizontally on the crate with a varying force F to move it distance d 4.00 m to the side (Fig. 7-44). (a) What is the magnitude of F when the crate is in this final position? During the crate's displacement, what are (b) the total L Figure 7-44 Problem 57. work done on it, (c) the work done by the gravitational force on the
College Physics
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ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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57 A 230 kg crate hangs from the end
of a rope of length L = 12.0 m. You push
horizontally on the crate with a
varying force F to move it distance d
4.00 m to the side (Fig. 7-44). (a) What is
the magnitude of F when the crate is
in this final position? During the crate's
displacement, what are (b) the total
L
F
Figure 7-44 Problem 57.
work done on it, (c), the work done by the gravitational force on the
crate, and (d) the work done by the pull on the crate from the rope?
(e) Knowing that the crate is motionless before and after its displace-
mėnt, use the answers to (b), (c), and (d) to find the work your force
F does on the crate. (f) Why is the work of your force not equal to
the product of the horizontal displacement and the añswer to (a)?
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