(b) The force that the passenger applies to the suitcase is not in the same direction as the displacement of the suitcase, so we have to find the "piece" or "component" of the force vector F that is in the same direction as the displacement. In other words, we must find F = Fcos0, where is the angle between the two vectors, F and F a. If 0 = 30°, what work is done on the suitcase by the passenger? b. What is the work done on the suitcase by friction?
(b) The force that the passenger applies to the suitcase is not in the same direction as the displacement of the suitcase, so we have to find the "piece" or "component" of the force vector F that is in the same direction as the displacement. In other words, we must find F = Fcos0, where is the angle between the two vectors, F and F a. If 0 = 30°, what work is done on the suitcase by the passenger? b. What is the work done on the suitcase by friction?
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 29P: A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N...
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Solve question 1 which has two parts: letter a and letter b
Transcribed Image Text:1. As shown below, a passenger pulls on the suitcase that has a mass 7.27 kg with a force of 30.0 N and displaces
the suitcase horizontally 10.0 m. The angle between F and the horizontal is 30°. The coefficient of kinetic friction
MK = 0.45
Force and displacement
are not in the same direction;
here W = FAx.
Ar
F
F
b. What is the work done on the suitcase by friction?
F.
(b)
The force that the passenger applies to the suitcase is not in the same direction as the displacement of the suitcase, so
we have to find the "piece" or "component" of the force vector F that is in the same direction as the displacement. In
other words, we must find Fx = Fcos0, where is the angle between the two vectors, F and Fx
a. If 0 = 30°, what work is done on the suitcase by the passenger?
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