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lecture9_clicker

# lecture9_clicker - The coefficient of static friction μ s...

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Newton’s First Law is the: In-Class Quiz 1: Newton’s First Law A. Law of Gravity B. Law of Equilibrium C. Law of Inertia D. Law of Acceleration E. Law of Motion When the net force on an object is zero: Objects at rest remain at rest and objects moving at constant velocity continue at this velocity

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Quiz 2a F A block with mass 2 kg, initially at rest on a table, is pulled by a horizontal force F. The coefficient of static friction ( μ s ) is 0.3 and the coefficient of kinetic friction ( μ k ) is 0.2. Find the friction if F = 1 N (Assume g = 10 m/s 2 ). A.0 N B.1 N C.2 N D.4 N E.10 N
Quiz 2b (will count for credit) F A block with mass 2 kg, initially at rest on a table, is pulled by a horizontal force F.

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Unformatted text preview: The coefficient of static friction ( μ s ) is 0.3 and the coefficient of kinetic friction ( μ k ) is 0.2. Find the friction if F = 2 N (Assume g = 10 m/s 2 ). A.0 N B.1 N C.2 N D.4 N E.10 N Quiz 2c F A block with mass 2 kg, initially at rest on a table, is pulled by a horizontal force F. The coefficient of static friction ( μ s ) is 0.3 and the coefficient of kinetic friction ( μ k ) is 0.2. Find the friction if F = 10 N (Assume g = 10 m/s 2 ). A.0 N B.1 N C.2 N D.4 N E.10 N For a block sliding down a plane, the frictional force is pointed--1. Normal to the plane 2. Down the plane 3. Up the plane 4. Can not be determined In class Quiz 3...
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