*•26 00 Figure 6-32 shows three crates being pushed over a concrete floor by a horizontal force F of magnitude 440 N. The masses of the crates are m, = 30.0 kg, m2 = 10.0 kg, and m3 = 20.0 kg. The coeffi- cient of kinetic friction between the floor and each of the crates is 0.700. (a) What is the magnitude F of the force on crate 3 from crate 2? (b) If the crates then slide onto a polished floor, where the coefficient of kinetic friction is less than 0.700, is magni- tude F more than, less than, or the same as it was when the coefficient was 0.700? Fig. 6-31 Problem 25. %3D Flg. 6-32 Problem 26. Frictionless, massless pulley

*•26 00 Figure 6-32 shows three crates being pushed over a concrete floor by a horizontal force F of magnitude 440 N. The masses of the crates are m, = 30.0 kg, m2 = 10.0 kg, and m3 = 20.0 kg. The coeffi- cient of kinetic friction between the floor and each of the crates is 0.700. (a) What is the magnitude F of the force on crate 3 from crate 2? (b) If the crates then slide onto a polished floor, where the coefficient of kinetic friction is less than 0.700, is magni- tude F more than, less than, or the same as it was when the coefficient was 0.700? Fig. 6-31 Problem 25. %3D Flg. 6-32 Problem 26. Frictionless, massless pulley

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

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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Question

*•26 00 Figure 6-32 shows three
crates being pushed over a concrete
floor by a horizontal force F of
magnitude 440 N. The masses of the
crates are m, = 30.0 kg, m2 = 10.0
kg, and m3 = 20.0 kg. The coeffi-
cient of kinetic friction between the
floor and each of the crates is 0.700.
(a) What is the magnitude F of the
force on crate 3 from crate 2? (b) If
the crates then slide onto a polished
floor, where the coefficient of kinetic
friction is less than 0.700, is magni-
tude F more than, less than, or the
same as it was when the coefficient
was 0.700?
Fig. 6-31 Problem 25.
%3D
Flg. 6-32 Problem 26.
Frictionless,
massless pulley

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