AP Physics 1 2.1.B: Center of Mass
Practise locating a system’s center of mass and tracking its path or velocity as the positions and velocities of its constituent objects change.
- Syllabus
- Effective Fall 2024
- Course
- AP Physics 1: Algebra-Based
Exam points
- Infer the center-of-mass location and path from object positions and external forces on the system
- Calculate center-of-mass velocity for equal masses from each object’s velocity
2.1.B—Describe the location of a system’s center of mass with respect to the system’s constituent parts question 1
[Maximum number: 1]
Two identical objects, 1 and 2, are initially at rest. Object 1 remains at rest while Object 2 begins to accelerate in the +x-direction. Which of the following claims regard ing the location of the center of mass of the two-object system is correct?
A
The location of the center of mass does not change.
B
The location of the center of mass moves in the +x direction at a constant speed.
C
The location of the center of mass accelerates in the +x-direction and is located between the two ob jects.
D
The location of the center of mass accelerates in the +x-direction and is located at the same location as Object 2.
C
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