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- Introduction to Mechanics MCQ
- Unit 04: Dynamics
- A person is dragging an object
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Card 39 / 58: A person is dragging an object across a rough surface using a rope. Which of the following statements is correct?
A)
The force the rope exerts on the person is greater than the force the rope exerts on the object because of the resistance due to friction.
B)
The force the rope exerts on the person is less than the force the rope exerts on the object because of the resistance due to friction.
C)
The force the rope exerts on the person is equal to the force the rope exerts on the object.
D)
All of these answers are possible, depending on the nature of the other forces involved. For instance, is someone else helping him drag the object?
Answer:
C) The force the rope exerts on the person is equal to the force the rope exerts on the object.
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Attribution:
Introduction to Mechanics. The Saylor Academy 2014, http://www.saylor.org/courses/phys101/
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