2.22. Holding a cone * With two fingers, you hold an ice cream cone motionless upside down, as shown in Fig. 2.28. The mass of the cone is m, and the coefficient of static friction between your fingers and the cone is u. When viewed from the side, the angle of the tip is 20. What is the minimum normal force you must apply with each finger in order to hold up the cone? In terms of 0, what is the minimum value of u that allows you to hold up the cone? Assume that you can supply as large a normal force as needed. 2.23. Keeping a book up ** The toals of R. finger finger
2.22. Holding a cone * With two fingers, you hold an ice cream cone motionless upside down, as shown in Fig. 2.28. The mass of the cone is m, and the coefficient of static friction between your fingers and the cone is u. When viewed from the side, the angle of the tip is 20. What is the minimum normal force you must apply with each finger in order to hold up the cone? In terms of 0, what is the minimum value of u that allows you to hold up the cone? Assume that you can supply as large a normal force as needed. 2.23. Keeping a book up ** The toals of R. finger finger
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 2.22 in the image.
Transcribed Image Text:2.22. Holding a cone *
With two fingers, you hold an ice cream cone motionless upside down,
as shown in Fig. 2.28. The mass of the cone is m, and the coefficient
of static friction between your fingers and the cone is u. When viewed
from the side, the angle of the tip is 20. What is the minimum normal
force you must apply with each finger in order to hold up the cone? In
terms of 0, what is the minimum value of u that allows you to hold
again the cone? Assume that you can supply as large a normal force as needed.
up
finger
2.23. Keeping a book up **
The task of Problem 2.4 is to find the minimum force required to keep a
book up. What is the maximum allowable force, as a function of and Fig. 2.28
Ꮎ ' Ꮎ
I
I
finger
I
Expert Solution
Step 1
Given,
Mass of cone = m
Coefficient of static friction = µ
Angle on the tip = 2θ
Step by step
Solved in 2 steps with 1 images
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