1) From the data above: a) Does the friction depend on the area of contact? b) Does the nature of the surface in contact affect the force of friction? Explain. c) Does the angle of inclination affect the friction force? What does the tangent angle indicates?
1) From the data above: a) Does the friction depend on the area of contact? b) Does the nature of the surface in contact affect the force of friction? Explain. c) Does the angle of inclination affect the friction force? What does the tangent angle indicates?
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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1) From the data above:
a) Does the friction depend on the area of contact?
b) Does the nature of the surface in contact affect the
c) Does the angle of inclination affect the friction force? What does the tangent angle indicates?
2) Based on the graph, how is the normal force related to the frictional force?
3) Give some ways, how friction is an advantage and a disadvantage.
4) How can frictional force be increased? Decreased?
5) Show that the coefficient of static friction is equal to the slope of the incline plane.
Transcribed Image Text:Table 5.2: Friction on an Inclined Plane
Trial
Angle (0)
Fr
acceleration
time
velocity
6.74 m/s
Mass
Hs
Hk
2 s
3 kg
3 kg
3 kg
4 kg
4 kg
4 kg
3.35 m/s?
2.89 m/s?
2.43 m/s?
3.35 m/s?
2.89 m/s?
2.43 m/s?
20°
0.1
27.63 N
ON
2 s
2 s
6.05 m/s
4.9 m/s
6.77 m/s
20°
0.1
0.05
27.63 N
1.38 N
20°
0.1
0.1
27.63 N
2.76 N
20°
0.1
36.84 N
ON
2 s
5.92 m/s
4.97 m/s
20°
0.1
0.05
36.84 N
1.84 N
2 s
20°
0.1
0.1
36.84 N
3.68 N
2 s
은1|2|3| 4 |5| 6
Transcribed Image Text:Table 5.1: Friction on a Horizontal Plane
Tension
acceleration
velocity
9.38 m/s
6.65 m/s
5.8 m/s
5.38 m/s
Trial
Mass
Hs
N
time
1 kg
2 kg
3 kg
4 kg
18.04 m/s?
13.04 m/s?
11.37 m/s?
10.54 m/s?
1
20 N
0.2
0.2
9.8 N
1.96 N
5 s
30 N
0.2
0.2
19.6 N
3.92 N
5 s
40 N
0.2
0.2
29.4 N
5.88 N
5 s
4
50 N
0.2
0.2
39.2 N
7.84 N
5 s
Graph 1: Ff vs Mass
(4. 7.84)
(3, 5.88)
(2, 3.92)
(1, 1.96)
Ду
3.92-1.96
5.88-3.92
7.84-5.88
Slope:
Дх
= 1.96 x 2
%3D
2-1
3-2
4-3
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