What is the initial distance between the centers of mass of the balloon and the person in the first problem?
Center of Mass - AP Physics 1: Kinematics Review Supplement

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Physics, Science, Engineering
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11th Grade - University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2 times Capital R
Capital R
4 times Capital R
3 times Capital R
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does the center of mass of the balloon-person system remain stationary relative to the Earth?
Because the person is not moving
Due to zero net external force on the system
Because the balloon is heavier
Due to the massless rope
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the second problem, what is the initial velocity of the system before the book is thrown?
8 meters per second north
3 meters per second east
0 meters per second
5 meters per second west
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What principle is used to solve the second problem involving the textbook?
Conservation of energy
Newton's second law
Conservation of momentum
Archimedes' principle
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final velocity of the center of mass of the system after the book is thrown?
3 meters per second east
8 meters per second north
0 meters per second
5 meters per second west
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are the two center of mass problems similar?
Both involve moving objects
Both have zero net external force
Both are about frictionless surfaces
Both involve ropes
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should you do if a multiple choice problem seems algebraically complex?
Skip the problem
Guess the answer
Use a calculator
Look for a simpler solution
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