Rotational Inertia
AP Physics 1 · Flashcards
AP PHYSICS 1 · FLASHCARDS
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QUESTION
How does increasing mass affect rotational inertia?
QUESTION
What is the relationship between torque and rotational inertia?
QUESTION
Calculate the rotational inertia of two point masses at opposite ends of a rod.
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ANSWER
Use
I
=
m
1
r
1
2
+
m
2
r
2
2
I = m_1 r_1^2 + m_2 r_2^2
I
=
m
1
r
1
2
+
m
2
r
2
2
. Apply point mass formula to each mass separately.
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