The contestant now pulls the block of ice with a rope over his shoulder at the same angle above the horizontal as shown below. The coefficient of friction of ice can be found in Table 6.1. Calculate the minimum force Fhe must exert to get the block moving. (b) What is its acceleration once it starts to move, if that force is maintained? | 25°
The contestant now pulls the block of ice with a rope over his shoulder at the same angle above the horizontal as shown below. The coefficient of friction of ice can be found in Table 6.1. Calculate the minimum force Fhe must exert to get the block moving. (b) What is its acceleration once it starts to move, if that force is maintained? | 25°
College Physics
11th Edition
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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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Transcribed Image Text:The contestant now pulls the block of ice with a rope
over his shoulder at the same angle above the
horizontal as shown below. The coefficient of friction
of ice can be found in Table 6.1. Calculate the
minimum force F he must exert to get the block
moving. (b) What is its acceleration once it starts to
move, if that force is maintained?
| 25°
Transcribed Image Text:System
Static Friction us
Kinetic Friction uk
Rubber on dry concrete
1.0
0.7
Rubber on wet concrete
0.5-0.7
0.3-0.5
Wood on wood
0.5
0.3
Waxed wood on wet snow
0.14
0.1
Metal on wood
0.5
0.3
Steel on steel (dry)
0.6
0.3
Steel on steel (oiled)
0.05
0.03
Teflon on steel
0.04
0.04
Bone lubricated by synovial fluid
0.016
0.015
Shoes on wood
0.9
0.7
Shoes on ice
0.1
0.05
Ice on ice
0.1
0.03
Steel on ice
0.4
0.02
Table 6.1 Approximate Coefficients of Static and Kinetic Friction
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