Giancoli's Physics: Principles with Applications, 7th Edition
4
Dynamics: Newton's Laws of Motion
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4-4 to 4-6: Newton's Laws, Gravitational Force, Normal Force
4-7: Newton's Laws and Vectors
4-8: Newton's Laws with Friction, Inclines

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 37
Q

# A force of 35.0 N is required to start a 6.0-kg box moving across a horizontal concrete floor.

1. What is the coefficient of static friction between the box and the floor?
2. If the 35.0-N force continues, the box accelerates at $0.60 \textrm{ m/s}^2$. What is the coefficient of kinetic friction?
A
1. $0.60$
2. $0.53$

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