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- Introduction to Mechanics MCQ
- Unit 04: Dynamics
- Which of the following statements
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Card 47 / 58: Which of the following statements regarding friction is false?
A)
Friction always acts in the direction opposite the motion.
B)
Friction always causes a reduction of the kinetic energy of the object.
C)
Friction always produces heat.
D)
Friction always does negative work on the object.
Answer:
B) Friction always causes a reduction of the kinetic energy of the object.
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Attribution:
Introduction to Mechanics. The Saylor Academy 2014, http://www.saylor.org/courses/phys101/
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