Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 61GP
A 4 5-kg sled is pulled with constant speed across a rough, horizontal surface with various amounts of weight added to the sled. Data showing the required force for several different amounts of added weight are given in the table.
Plot the data and determine the coefficient of kinetic friction between the sled and the horizontal surface.
| Added weight (kg) | Force (N) |
| 0 | 11 |
| 1 | 15 |
| 2 | 17 |
| 3 | 21 |
| 4 | 22 |
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If a box with mass of 50 kg is moving on a rough surface with kinetic friction coefficient of 0.7, how much force is needed to keep the box moving?
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A man pushing a crate of mass
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v = 0.860 m/s
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ℓ = 0.65 m
as in the figure below. If the coefficient of kinetic friction between the crate and rough surface is 0.359 and he exerts a constant horizontal force of 281 N on the crate.
) Find the magnitude and direction of the net force on the crate while it is on the rough surface
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In a figure,
m1 = 10.4 kg
and
m2 = 4.3 kg.
The coefficient of static friction between m1 and the horizontal surface is 0.50, and the coefficient of kinetic friction is 0.30.
An illustration shows a rectangular block of mass m1 on the horizontal surface of a table. This is connected to another rectangular block of mass m2 by a cord that runs over a pulley placed diagonally at the corner of the horizontal surface of the table. The rectangular block of mass m2 is suspended vertically by the side of the tabletop.
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Chapter 6 Solutions
Physics (5th Edition)
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