Rotational Inertia
AP Physics 1 · Flashcards · Application
AP PHYSICS 1 · FLASHCARDS
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QUESTION
Calculate the rotational inertia of two masses connected by a rod.
QUESTION
Determine the rotational inertia of a system of point masses.
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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